List of One-Punch Man episodes
One-Punch Man is a Japanese anime series based on the webcomic created by One and its subsequent manga adaptation illustrated by Yusuke Murata. Set in Z City, the story focuses on Saitama, a superhero who has grown bored as he has become so powerful that all of his battles end in a single punch. The series was directed by Shingo Natsume at Madhouse and was written by Tomohiro Suzuki. The series also features character design by Chikashi Kubota, who also served as chief animation director, and music by Makoto Miyazaki. The series aired in Japan between October 5, 2015 and December 21, 2015 and was simulcast by Daisuki and Hulu. The opening theme song is "The Hero!! ~Ikareru Ken ni Honō o Tsukero~" (THE HERO!! ～怒れる拳に火をつけろ～, "The Hero!! Set Fire to the Furious Fist") by JAM Project, and the ending theme is "Hoshi Yori Saki ni Mitsukete Ageru" (星より先に見つけてあげる, "I'll Find It Before the Stars for You") by Hiroko Moriguchi. The ending theme for episode 12 is "Kanashimi-tachi o Dakishimete" (悲しみたちを抱きしめて "Hug Those Who Are Feeling Sad") by Moriguchi. An original video animation was released with the tenth manga volume on December 4, 2015. Additional OVAs are included in Blu-ray Disc & DVD volumes of the series, which begin release from December 24, 2015. The ending theme for the OVAs is "Saitama no WanPan Ondo" (サイタマのワンパン音頭 "Saitama's One-Punch Song"), performed by Makoto Furukawa. The series is licensed in North America by Viz Media, who also streamed the series on its Neon Alley service, in the United Kingdom by Kaze UK, and by Madman Entertainment in Australia and New Zealand, who simulcasted the series on AnimeLab. On television, the series began airing on Adult Swim's Toonami block on July 16, 2016. The first season of the anime received critical acclaim, praised for its animation quality, visuals and the overall story itself.
Season 1 (2015)
|No.||Title||Director||Original airdate||English airdate|
|1||"The Strongest Man"|
"Saikyō no Otoko" (最強の男)
|Shingo Natsume||October 4, 2015||July 16, 2016|
|Vaccine Man wreaks havoc in a city. But as he is about to kill a young girl, Saitama arrives and saves her. Saitama has been living a boring life, as he has extraordinary strength in which he can defeat enemies in one punch. He recalls three years ago, when he was leaving a job interview, he had saved a boy with a cleft-chin from Crablante. Back at the present time, he faces The Brain and Brawn Brothers, one of whom is a huge giant, and defeats them easily. One night, he has a dream about a subterranean race who invade and pose a challenge, but when he wakes, he finds that the subterraneans are extremely weak.|
|2||"The Lone Cyborg"|
"Kokō no Saibōgu" (孤高のサイボーグ)
|Shin'ichirō Ushijima||October 11, 2015||July 23, 2016|
|Mosquito Girl attacks the city with her swarms which suck the blood out of everyone alive. A cyborg named Genos tries to stop her but is having a difficult time. After dealing with a single pesky mosquito, Saitama sees Genos and Mosquito Girl fighting, and defeats Mosquito Girl. Despite Genos's extremely boring explanation of his past, Saitama agrees to make Genos his apprentice. Some monsters from a group called the House of Evolution try to capture Saitama, but fail. Saitama questions Armored Gorilla about what's going on.|
|3||"The Obsessive Scientist"|
"Shūnen no Kagakusha" (執念の科学者)
|Yōsuke Hatta||October 18, 2015||July 30, 2016|
|Armored Gorilla tells the story of Doctor Genus, a brilliant young scientist with plans to artificially evolve humans, but becomes disillusioned with the world. Dr. Genus eventually discovers the secret to immortality and makes himself young again, clones himself multiple times, and then works on animals and humanoids to create the monsters that make up the House of Evolution. Saitama cuts off the narration, at which Armored Gorilla summarizes that Genus just wants to capture Saitama for his experiments. Genos destroys Dr. Genus's eight-floor tower, prompting Dr. Genus to unleash his ultimate creation, Carnage Kabuto, who at first is afraid of Saitama's aura of overwhelming power. Kabuto asks Saitama his secret to his strength, at which Saitama happily tells him, Genos, and Dr. Genus. Kabuto attacks Saitama, but when Saitama realizes that today was supposed to be the big supermarket sale, he quickly punches Kabuto into pieces, and leaves with Genos to rush to the sale. Afterwards, Dr. Genus abandons his research.|
|4||"The Modern Ninja"|
"Imadoki no Ninja" (今時の忍者)
|Nobuhiro Mutō||October 25, 2015||August 6, 2016|
|The hard-headed criminal Hammerhead and his posse of bald villains called the Paradisers are sick of working and demand free goods for the unemployed. They try to destroy the building of Zeniru, a local business magnate, using modified suits that give the Paradisers super-strength. Saitama is offended that the Paradisers are giving bald people a bad reputation. Bicycle hero Mumen Rider tries to stop the Paradisers, but is defeated. The Paradisers reach Zeniru's home, but Zeniru has hired a ninja named Speed-o'-Sound Sonic, who wipes out the Paradisers in seconds and puts a kunai knife into the back of Hammerhead's skull. Hammerhead escapes and runs into Saitama, who provokes Hammerhead to attack with his suit at full power. But Saitama destroys the suit, leaving Hammerhead naked. Sonic fights Saitama, thinking the latter is a Paradiser, but when he accidentally plants his crotch on Saitama's fist, he quivers in agony and retreats. That night, Saitama sulks over his lack of recognition as a hero, when Genos suggests they join the Hero Association.|
|5||"The Ultimate Master"|
"Kyūkyoku no Shi" (究極の師)
|Shunichi Yoshizawa||November 1, 2015||August 13, 2016|
|Saitama and Genos pass an exam for the Heroes Association. While Genos gets a perfect score and is placed in the highest S-Class tier, Saitama is placed in the lowest C-Class tier, having broken every record in the physical portion of the exam, but doing poorly on the non-physical sections. They then attend an orientation seminar from Snakebite Snek, who is annoyed that Saitama does not pay attention to him. Snek tries to teach him a lesson, only to embarrass himself when he is defeated by Saitama who was not even trying. Having received new upgrades, Genos asks Saitama to spar with him and do it seriously. Saitama humors him but as he is about to get serious, he stops his finishing blow and asks him to come get food with him. A-Class Hero Amai Mask meets with Genos to deliver a welcome gift and a warning to take his responsibilities seriously. Genos moves in with Saitama much to the latter's chagrin.|
|6||"The Terrifying City"|
"Saikyō no Toshi" (最恐の都市)
|Shin'ichirō Ushijima||November 8, 2015||August 20, 2016|
Saitama tries to come up with ideas for mentoring Genos, but when Genos mentions that C-class heroes who are inactive for more than a week are dropped from their registry, he rushes around to look for petty villains around town without much success. Sonic appears to try to settle their alleged rivalry, but Saitama finds him annoying. Tank-Top Tiger reproaches Saitama for his antics and tries to absorb the credit of being a hero when Sonic attacks them and the populace. Saitama realizes Sonic is doing villanous things and swiftly taps him on the back, knocking him out cold, saving the day.Later that day, a mysterious being was seen skulking around frightening the few masses who lived in the desolate Z-City; perturbed at not being sent out to deal with it, Tatsumaki berates the assignment staff. They have already sent out A-Class' Golden Ball and Spring Mustachio out to the scene. In Z-City the two aforementioned heroes are busy patrolling the streets, wondering about a rumor of a pretty dangerous monster who lives in said area. After finding next to nothing on the job, they eventually find signs of said Mysterious Being and chase after it. Running into Kombu Infinity, who also heard rumors of a powerful group of monsters in the city, engaged the duo and easily swats the best efforts of both aside. Realizing they are outmatched, Mustachio dials for reinforcements just before he is swiftly defeated. Upset that his opponents were so weak, Kombu sets out to create the rumor he and his fellow monsters initially heard about; soon after Saitama returns from a market sale, when Kombu notices him as the former relents on not having been able to secure some kombu soup stalk just before the monster attacks him. When next seen, Saitama is just cooking some kombu soup when Genos comes in. Later Tatsumaki is seen berating the assignment staff for not sending her in to fight. In the post-credits, Genos tells Saitama that, while he's in 17th place within the S-class, he's ranked 6th in popularity, much to Saitama's dismay.
|7||"The Ultimate Disciple"|
"Shikō no Deshi" (至高の弟子)
|Yōsuke Hatta||November 15, 2015||August 27, 2016|
|Scientists and astronomers are busy studying the flight pattern of a meteorite just as it passes over the earth. When its course suddenly changes trajectory and is about to strike City Z. A notice is sent out to all S-Class heroes to intercept the meteor. Only Genos arrives on the scene, followed by an aged S-Class hero Bang. He tells Genos the meteor evacuation protocols have already begun and that he should clear out before it is too late, Bang himself cannot leave the city due to family honor and personal reasons, and before he could formally introduce himself, Genos has already left. Genos theorizes that it is too late to evacuate, seeing the meteor approaching too fast. Another S-Class hero named Metal Knight shows up to test out a new weapon against the meteor but is uninterested in teaming up with Genos. When his new weapon fails, Genos used his own prototype weapon on the meteor. Despite the overwhelming power displayed, he fails. Saitama shows up and destroys the meteor with a single punch, impressing Bang and boosting Genos' admiration. However, the meteor shatters into several meteorites and still manages to destroy the city. The next day, Saitama learns that his rank has jumped from 342nd to 5th. After that Saitama goes out to look for more crisis to boost his own rank. Much of the city is destroyed but despite that, there are zero casualties reported. Tanktop Tiger appears and believes Saitama has stolen credit for the meteor destruction. Tanktop Tiger calls his brother Tanktop Black Hole, who begins to rally up a mob against Saitama, putting all the blame on him for the city's destruction. Tanktop Tiger attacks Saitama, and its punched into the sky. Tanktop Blackhole attacks next, and Saitama catches his fist, crushing it. Saitama then moves on to the crowd, who were chanting for his resignation, and he shouts for everyone to shut up. Saitama clarifies that he is being a hero because he wants to and does not need to be appreciated for it. Genos appears and tells Saitama that it is time for them to go home. In the post-credits, unseen citizens discuss Saitama's victory over the meteor, while myriad ominous creatures located under the sea appear to be impending.|
|8||"The Deep Sea King"|
"Shinkai no Ō" (深海の王)
|Nobuhiro Mutō||November 22, 2015||September 10, 2016[a]|
|The episode opens with an octopus-like monster announcing that the Seafolk are coming to the surface to kill all the humans. Saitama is on his way home and stops by to punch it. Mumen Rider is late to the scene and sees only the destroyed body of the creature, and hears the crowd talking about Saitama. Mumen looks Saitama up on the internet and sees that he is powerful, but opinions are divided on him. At the coast, several large Sea-Folk monsters emerge from the sea, threatening City J. The Class A hero Stinger (rank 11) challenges them with his powerful Bamboo Shoot weapon. Meanwhile, Genos is drying dishes as Saitama watches a news report about Stinger's battle against the Sea-Folk. They decide to head out to confront the threat. Back at the fight, Stinger takes out the last four Seafolk with a Gigantic Drill Stinger Quadruple Thrust attack, but is then bested by a new monster: Deep Sea King. Saitama, Genos, and Mumen Rider all set off to confront the threat. Genos splits off from Saitama to scout ahead. Various other heroes confront Deep Sea King to no avail, including Lightning Max (class A), Puri-Puri Prisoner (class S), and Sonic (not technically a hero). Sonic fights Sea King to a standstill, but when it starts raining, Sea King unleashes his true form and Sonic is forced to retreat. Meanwhile, Saitama and Mumen Rider meet each other on the way to the fight. Saitama goes off to find Sonic who he sees running naked through the rain. Mumen gets a phone call from Hero Association headquarters and goes to confront Sea King, who has broken into an emergency shelter and is dispatching the heroes there ranging from All Back-Man, Bunbunman, Jet Nice Guy, and Sneck. Saitama returns to where he met Mumen Rider to find a discarded cell phone. The episode ends with Saitama telling the Hero Association he is on his way.|
"Fukutsu no Seigi" (不屈の正義)
|Shunichi Yoshizawa||November 29, 2015||September 17, 2016|
|Genos initiates battle, and seemingly defeats the monster with a massive attack. However, he lets his guard down and gets one of his arms ripped off. He tells the townspeople to run, since victory is no longer assured. He seems to be doing a good job, until the Deep Sea King launches a glob of acid at a child, which Genos intercepts, and it melts his bionic body, nearly killing him. Mumen Rider appears and engages the Deep Sea King. He is defeated easily, but refuses to give up. Upon seeing this, the townspeople decide to encourage him, but to no avail. When Mumen Rider is knocked out, he is caught by Saitama, who had been instructed by the Association to provide backup and arrives in that exact moment. After exchanging a few words with the Deep Sea King, he defeats him with a single punch and is praised by the townspeople. Back at their apartment, Genos and Saitama get a delivery of fan mail from the Hero Association. Genos is praised, while Saitama gets a hateful letter, calling him a cheat. The episode reverts to a flashback from right after Saitama's victory. The townspeople are ecstatic to have been saved. However, one of them starts badmouthing the other heroes, saying how they must have been frauds, since they got beaten. His reasoning is that the Deep Sea King could not have been that tough if a Class C hero defeated it in one punch. Upon hearing this, Saitama laughs, and downplays his victory. The townspeople accept him as nothing but a fraud and thank the defeated heroes for their work. Genos decides not to interfere with Saitama's decision. The episode jumps back to present time, and Saitama realizes he has another letter - this one only saying "Thank You!". He then finds a third letter from the Hero Association, telling him he is now 1st Rank C-class, and calling him in to discuss a promotion to B class. Saitama accepts, making him 101st Rank, B-class. The episode jumps to Amai Mask, one of his subordinates tells him that Saitama moved up a rank. Amai Mask seems to not care, as he is disappointed by the work of the A- and S-Rank heroes in the Sea King case. However, he changes his mind when he is told that Saitama was the one to actually defeat the monster. The episode ends with Saitama walking home at night with his promotion. He encounters Mumen Rider in a roadside oden shop. Mumen Rider reveals he sent the thank-you letter and pays for Saitama's dinner. In the post-credits, a fortune teller named Madame Shibabawa warns an official from the Hero Association that "the Earth is doomed".|
"Katsute nai hodo no kiki" (かつてない程の危機)
|Shin'ichirō Ushijima||December 6, 2015||September 24, 2016|
|The Ancient King of the Terror Lizard Clan appears and Tatsumaki is sent to deal with him. After a short quarrel, Tatsumaki sends a meteor from outer space to destroy the monster. At Bang's dojo, Bang tells Saitama and Genos, who were called there by Bang to learn some moves, about how his former best student, Garo, went wild and defeated all of his other top students. Suddenly, a Hero Association member comes and informs the heroes that an emergency has been declared and all S Class heroes have been called to a meeting. At the association, Saitama meets Atomic Samurai, an arrogant S Class hero, and the other S Class heroes, Puri-Puri Prisoner, Metal Bat, Tanktop Master, Flashy Flash, Watchdog Man, Superalloy Blackluster, Pig God, Drive Knight, Zombieman, King, Child Emperor, except for Metal Knight and Blast, who are absent. Sitch, a member of the associations, starts the meeting by telling the heroes that the emergency would be perilous and even with their skills, there is no guarantee of survival. Also, the great seer, Madame Shibabawa, had died while becoming agitated and choking on a cough pill because of a coughing fit while predicting the future. Sitch mentions that Shibabawa's predictions have always been 100% accurate, be it monster attacks or natural disasters. Before she died, she left a note. The note read "The Earth is in trouble", alarming the heroes. He warns the heroes to prepare for a fight in the next 6 months. Just after he says this, the HQ is attacked by the Skyfolk led by Sky King, who are quickly slain by Melzalgald, a member of an alien race called the Dark Matter Thieves. An alien spacecraft then proceeds to destroy City A, causing a large number of casualties as their alien invasion begins. Just as Melzalgald is about to kill some City A civilians, Iairon, a student of Atomic Samurai, arrives and engages him in battle. Saitama encounters the alien ship and advances towards it. Meanwhile, Melzalgald proves to be a challenge for Iaian and causes him to lose his left arm before Atomic Samurai intervenes, saving his student. Melzalgald regenerates and the heroes' attacks seem to cause no damage to him. Then, Metal Bat, Bang and Puri Puri Prisoner arrive. Puri Puri Prisoner enters Angel style and attacks Melzalgald. Elsewhere, the other S Class heroes discuss how to bring down the ship. As they offer differing views, Genos notes that Saitama has already entered the ship and slain a large number of the aliens. He comments that there is no evil that Saitama is unable to defeat. Saitama encounters Goribas, an alien, bragging how to defeat him. But is slain, as Saitama punches at everything and continues to destroy the ship, wondering where the boss might be. At the end, Boros is seen on his throne.|
|11||"The Dominator of the Universe"|
"Zen uchū no hasha" (全宇宙の覇者)
|Yōsuke Hatta||December 13, 2015||October 1, 2016|
|Geryuganshoop complains about Groribas' defeat as he and Melzargard are the only ELITE fighters left on the ship. Boros walks in and Geryuganshoop informs him that the ship is badly damaged by the human intruder but Lord Boros tells him not to fear as the sphere keeping them safe won't allow that to happen. Meanwhile, Puri Puri Prisoner's efforts were futile as Melzargard simply regenerates back into his form. Melzargard tells his other head to go and contact the ship for a bombardment. As the head flies away, Metal Bat smacks him down. Melzargard and Geryuganshoop telepathically tell each other that both sides are dealing with big trouble as Saitama reaches another door. Atomic Samurai, Puri Puri Prisoner and Bang join forces and attack Melzargard together. Melzargard and Genryuganshoop speak telepathically saying the life forms below are persistently attacking him and requested for a cleansing bombardment. Genryuganshoop is too busy but notifies the artillery crew. Genryuganshoop leaves the conversation and while Melzargard was distracted, Metal Bat finds a marble within Melzargard before he could regenerate thus destroying the marble and part of Melzargard for good. Genryuganshoop tries to lead Saitama out of the ship and Saitama went the opposite direction to find the controls room. He finally finds Genryuganshoop who has incredible telepathic powers that can manipulate everything and anything but in the end Saitama throws a pebble at him that destroys Genryuganshoop. After busting the other heads, the four heroes look up with shell bombardment ready to attack. After it shoots, Tatsumaki appears and stops the bullets in mid air. She then turns the bullets and forces them back onto the ship full force. Mumen Rider helps evacuate a victim to safety, when Stinger and Lightning Max appear wanting to help too. Bang on the other hand finds another marble and crushes it. Angry, Melzargard slaps the concrete along with Bang, who takes a direct hit. He sticks on a building, unconscious. With one more head left, Melzargard threatens to crush Atomic Samurai's head and he retaliates after seeing his comrade in that condition. Saitama finds Boros, who scans him for power, saying Saitama is Earth's strongest warrior with limitless energy. Boros treats Saitama with respect and tells him his name and the prophecy that brought the Dominator of the Universe to Earth. Saitama punches Boros, telling him he can't attack other planets just to liven up his boring life. Boros' armor, which was used to seal in his immense power, breaks apart, and his true form emerges.|
|12||"The Strongest Hero"|
"Saikyō no hīrō" (最強のヒーロー)
|Shingo Natsume||December 20, 2015||October 8, 2016|
|Boros continues to fight with Saitama, which leads to Boros losing an arm. The fight continues on, even reaching the point where Saitama finds himself on the moon, but he quickly returns. Meanwhile, Mumen Rider, Stinger, and Lightning Max rescue the last of the City A survivors. Tanktop Master tries to attack the ship by throwing a piece of rubble at it, only for Tatsumaki to throw dozens of pieces of rubble at the ship. The fight between the heroes and Melzargard concludes when Bang recovers and destroys his final marble, killing him. The fight between Saitama and Boros continues and it is revealed that Boros has regenerative powers. Eventually, they are both forced to use their most powerful moves. Saitama emerges victorious, and Boros admits he was not even close to Saitama. After the fight, Drive Knight warns Genos that Metal Knight is his enemy. Amai Mask appears and blames the S-class heroes for the destruction of City A, nearly causing a fight which is interrupted by Metal Knight who emerges to salvage parts of the ship. Meanwhile, Superalloy Blackluster discovers alien survivors whom Amai Mask promptly executes. Genos sees his past self in Amai Mask. Saitama emerges from the ship to find Tornado having a tantrum, and Genos quickly begins an argument with her; Bang interrupts before it can escalate into a fight. The parts Metal Knight salvages from the ship are used to rebuild the hero HQ which takes the place of City A which is wiped off the map. The A and S Class heroes are invited to stay in the newly rebuilt hero HQ. In the post-credits, Saitama destroys Pluton: King of the Underworld with one punch, much to his irritation.|
|No.||Title||Original release date|
|—||"Road to Hero"|
"Rōdo tu Hīrō" (ロード・トゥ・ヒーロー)
|December 4, 2015[b]|
|During his first year of training, Saitama (who still has hair, and is wearing a blue track suit) has defeated numerous villains in the abandoned area in Z-City but is still having problems with paying the rent, we know this because the landlady says he's 3 months overdue on his rent, Saitama speaks with a shop owner who is being forced to surrender his store's deed by a local gang, several other shops have gone out of business, a conversation between the gang boss and one of his stooges reveal that the boss has been buying out all the stores in the area to destroy them, and the store owner's store is the last one left, hearing this Saitama gives counsel to the clothes-shop owner telling him to not give up, then we find out that the gang's base is part of Saitama's apartment complex, Saitama goes door to door meeting the various criminals in the gang, Saitama isn't really interested until he hears them mention the reward on their heads, following this Saitama soundly beats them. The leader of the gang is the only left, and following Saitama telling him that there's no need for over charging, the leader of gang loses it and transforms into the villain known as (the) Fish of Darkness. They have a rather brief fight with Saitama defeating him easily, following Fish of Darkness revealing that the reward on his head is the greatest out of the entire gang. Following this Saitama talks to the landlady, and informs her that he's called the police on the criminals living in the apartment complex, in order to get the reward money so that he can pay the rent, unfortunately the landlady doesn't like this and promptly throws him out, this is because nearly all of her other tenants were in the gang. Saitama is found by the store owner sometime later, and Saitama explains what happened, but the owner states that he was getting too old anyway, and has therefore decided to close the shop anyway, but not before finishing a masterpiece that he made for Saitama (Saitama's costume). Then Genos tells Saitama that he should get a better suit, but Saitama asks him if he was even listening, after all he did explain the suit was a memento.|
|1||"The Shadow That Snuck Up Too Close"|
"Shinobiyori-sugiru Kage" (忍び寄りすぎる影)
|December 24, 2015|
|After the battle with Mosquito Girl, Genos tails Saitama as he goes about his daily life in the hopes of finding out the secrets behind his overwhelming strength. This in turn leads Saitama to believe he has a stalker after Genos takes one of his french fries for research. Saitama soon comes across Men's Esthetician Man, believing him to be the stalker and knocking him out. After his research goes nowhere, Genos decides to confront Saitama about his apprenticeship offer.|
|2||"The Pupil Who is an Extremely Poor Talker"|
"Hanashibeta-sugiru Deshi" (話ベタすぎる弟子)
|January 28, 2016|
|After spending some time together in a communal bath, Saitama gives Genos a key to their apartment and they both mull over items to buy for dinner; however, upon remembering a limited time sale at two separate supermarkets, the pair split up. Genos then senses a monster at a nearby shopping strip and defeats it. However, this makes him miss one of the sales. Once he reaches the other (closed down) supermarket, Genos bumps into the Dai Fuu Family's No. 2 man and the rival C-Class Pacino Family, headed by Don Pacino. Pacino mistakenly believes Genos is associated with the Dai Fuu Family; he steals the apartment key and kidnaps both men, promising to let them and the keys go once Genos states his case. Once Genos finishes telling his roundabout and ultimately worthless story to the Pacino family, Don Pacino becomes angry with Genos and the family opens fire. Genos easily defeats them and takes his key and the Dai Fuu Family's No. 2 man with him. After explaining his tardiness to Saitama, the pair enjoy some sukiyaki.|
|3||"The Ninja Who is Too Complicated"|
"Kojire-sugiru Ninja" (こじれすぎる忍者)
|February 25, 2016|
|After the events of episode 4, Sonic finds himself troubled that he cannot fight properly after his defeat at the hands of Saitama. While training in a forest with a Matagi who is looking to kill a bear that scarred him, Sonic rescues a baby boar from a snake that quickly bonds with him. Naming the boar Ino, Sonic continues training, gradually regains his confidence, and eventually leaves the Matagi and Ino, ready to fight Saitama again. Suddenly, the bear who scarred the Matagi (whose name is Frank) appears, only for Saitama to show up (he had previously heard of an influx of bears in the forest, and was hoping to have bear meat for dinner). Sonic silently watches over the city, ready for his next battle with Saitama, while Frank and Ino look with amazement at the forest cleared with a single punch.|
|4||"Bang, Who is Too Overbearing"|
"Gōin-sugiru Bang" (強引すぎるバング)
|March 29, 2016|
|After the events of episode 7, Bang begins to spy on Saitama and Genos to gauge their abilities. Hopeful that his Water Stream Rock Smashing Fist martial arts is stronger, and that proving so will coerce Saitama and Genos to study under him, Bang invites Saitama and Genos to his dojo under the pretense of giving them free meat. Soon, Bang challenges Saitama to a variety of games, including card-based memory games and rock-paper-scissors, with Bang winning almost every time. During one rock-paper-scissors match, an enraged Saitama nearly crushes Bang with a hammer, who is then forced to admit that Saitama is truly powerful. He does note, however, that the rock-paper-scissors game was the most excited he had ever seen Saitama be, and offers Saitama to join his dojo. Saitama refuses.|
|5||"The Sisters Who have Too Many Things Happening"|
"Iroiro Ari-sugiru Shimai" (色々ありすぎる姉妹)
|April 23, 2016|
|After Fubuki and the Blizzard Group get rid of one of Deep Sea King's leftover henchman, they are disheartened to learn that their heroism didn't make the next day's newspaper but everyone else's (including Tatsumaki) did. Fubuki takes this the hardest, and decides to go on a train ride to City Z to clear her thoughts. Genos, coincidentally, happens to also be on the same train with groceries. Later during the ride, Genos receives a call that an ex-Hero planted a bomb on the train and that it will detonate once it reaches the train station. Fubuki evacuates the panicked civilians off the train while enlisting the help of a budding, C-class hero to find the bomb; Genos tries to slow down the train from the outside. As Fubuki evacuates the C-class hero and hesitates while thinking about what to do with the bomb, Tatsumaki appears and successfully allows the train to detonate with no casualties; Fubuki once again expresses envy towards her older sister's actions. On the walk back, Fubuki meets up with the C-class hero, who expresses gratitude for Fubuki's actions and wishes to join Fubuki's group once she reaches B-class. Genos, meanwhile, visits Dr. Kuseno asking for psychic augmentation. The OVA ends with Saitama wondering why Genos is so late.|
|6||"The Murder Case That is Too Impossible"|
"Fukanō-sugiru Satsujin Jiken" (不可能すぎる殺人事件)
|May 31, 2016|
|The episode starts at the Hero Association's hot spring resort with the heroes who participated in the largest alien invasion had found Zombieman murdered on the floor. Child Emperor states one of the S-Class heroes is the culprit. The scene then flashbacks to the day before the murder had happened where all heroes were invited to stay overnight at the resort. The heroes enjoyed themselves in the hot spring. Metal Bat, who wasn't satisfied that some of the heroes that did not participate in the battle (Flashy Flash, Pig God, Watchdog Man), got invited as well. As they were also dealing with other monster cases, they got certain rewards as well. After the hot spring, Sitch gathers all the heroes to celebrate the victory against the invasion. A few heroes became drunk after drinking sake, which disgusted Child Emperor, who was later asked by Zombieman whether he's enjoying himself. The scene returns to the murder. Child Emperor gathers some of the evidence and tries to eliminate possible suspects to find out the truth, one of them being the weapon which stabbed Zombieman (Atomic Samurai's sword). He then interrogates a few other heroes including Saitama who asked Zombieman if he is truly immortal and finally asked King for more information. King recounts his story and shows a menacing face which scared Child Emperor a bit. Suddenly, Tatsumaki appears and is about to restrain everyone for being suspects of the murder when Zombieman wakes up. He then reveals that Atomic Samurai's katana was floating with green light surrounding it similar to Tatsumaki when she is flying. Child Emperor then asks Tatsumaki what she was doing last night and surmised that she was drunk from all the sake. She angrily argues that she knew Zombieman cannot be killed and wouldn't do such a half-assed thing. Bang calms her down and that everything's fine now that Zombieman is ok once again. Everyone then disbanded. Sitch then asked Child Emperor to look at a surveillance camera footage of last night. It shows that Tatsumaki is the culprit and she was very drunk. When walking home, Saitama was wondering Tatsumaki would stab Zombieman. Genos knew it was Saitama's fault but doesn't tell him. It was revealed that Saitama told Tatsumaki that she is a child and shouldn't drink sake. Feeling humiliated, Tatsumaki takes revenge by drinking as much as she could.|
- On the broadcast night of September 3, 2016, Adult Swim hosted a One-Punch Man Labor Day marathon where they played the first seven episodes. The English dub of episode 8 aired on Adult Swim on September 10.
- Road to Hero is an OAD episode released with the special edition of the 10th manga volume, ISBN 978-4-08-908260-7.
- "One-Punch Man Anime Features Kaito Ishikawa, Makoto Furukawa, Madhouse". Anime News Network. March 20, 2015. Retrieved September 19, 2015.
- "One-Punch Man Anime's 3rd Video Unveils More of Cast, JAM Project Song, Debut Date". Anime News Network. September 6, 2015. Retrieved September 19, 2015.
- "One-Punch Man Manga's 10th Volume Listed With OVA". Anime News Network. September 24, 2015. Retrieved September 24, 2015.
- "1st One-Punch Man BD/DVD to Include 'OVA #01'". Anime News Network. October 5, 2015. Retrieved October 5, 2015.
- "One-Punch Man Anime's 2nd BD/DVD Release Includes OVA". Anime News Network. November 14, 2015. Retrieved November 14, 2015.
- "One-Punch Man Anime DVD/BDs to Include 6 OVAs". Anime News Network. November 15, 2015. Retrieved November 15, 2015.
- "Viz Adds Legend of Galactic Heroes Novels, One-Punch Man Anime (Updated)". Anime News Network. July 2, 2015. Retrieved September 19, 2015.
- "Manga Entertainment and Animatsu News From London Comic Con". Anime News Network. 23 October 2015. Retrieved 28 October 2015.
- "AnimeLab adds Heavy Object, One-Punch Man and Yuruyuri San Hai! to Fall Simulcast Season". Anime News Network. October 8, 2015. Retrieved November 5, 2017.
- "One-Punch Man to Premiere on Adult Swim's Toonami on July 16". Anime News Network. July 1, 2016.
- "Toonami is proud to announce the newest anime joining our line-up: One-Punch Man! Premiering July 16 at midnight". Facebook. July 1, 2016.
- NIST Time and Date FAQ. Retrieved September 6, 2016.
- "EPISODE". Onepunchman-anime.net/ (in Japanese). Retrieved July 25, 2016.
- "Labor Day weekend isn't just about getting an extra day off. It's also about the One-Punch Man Marathon! Get ready for seven back-to-back episodes of your favorite bald hero. Happening September 3rd, starting at 11:30". Facebook. August 12, 2016.
- "One-Punch Man OVAs announced". Twitter (in Japanese). Retrieved November 15, 2015.