Cover of the first Blu-ray Disc volume featuring main character Mio Natsume
|Written by||Hajime Kamoshida|
|Illustrated by||Atsushi Kobayashi|
|Original run||September 6, 2017 – present|
|Anime television series|
|Directed by||Atsushi Kobayashi|
|Produced by||Keisuke Fukunaga|
|Written by||Hajime Kamoshida|
|Music by||Nagi Yanagi|
|Original network||AT-X, Tokyo MX, tvk, MBS, BS Fuji|
|Original run||October 5, 2017 – December 28, 2017|
Just Because! is an original Japanese anime television series by Hajime Kamoshida, the author of The Pet Girl of Sakurasou, and Kiseki Himura, the author of Getsuyōbi no Tawawa. The 12-episode anime, produced by Pine Jam, aired between October and December 2017. Sentai Filmworks has licensed the series and streamed it on Amazon's Anime Strike service in the US.
It is winter of their third year of high school, near the end of second semester, when students have very little time in high school left. Everyone is just waiting for graduation. Until Eita Izumi—their classmate in middle school who had moved far away—suddenly moves back home at a peculiar time. This reunites them, as if a go signal rang out to the feelings of the students who had just thought their high school life would end without fanfare.
- Eita Izumi (泉 瑛太 Izumi Eita)
- Voiced by: Aoi Ichikawa
- A transfer student who come back to his hometown after 4 years. Because his father's job was often relocated, Eita often transferred schools. He was in baseball club along with Haruto back in middle school.
- Mio Natsume (夏目 美緒 Natsume Mio)
- Voiced by: Karin Isobe
- The former student council president. Mio was Eita and Haruto's classmate during middle school. She plans to enroll in college and is studying hard to make that happen. Her unrequited feelings for a middle school crush still influence her.
- Haruto Sōma (相馬 陽斗 Sōma Haruto)
- Voiced by: Taishi Murata
- A baseball team member who has already secured a job after graduation. He and Eita are childhood friends. He has a crush on Hazuki and confesses his feelings but is rejected at first; however this changes over the series. Hazuki tells Haruto she won't date him until she is settled in college and Haruto finds a stable job and if he still loves her by that time.
- Hazuki Morikawa (森川 葉月 Morikawa Hazuki)
- Voiced by: Yuna Yoshino
- Hazuki is a member of the school concert band that has already decided on her preferred college. She does not stand out in class, and seems uninterested in romantic relationships. Haruto has a crush on her and confesses his feelings but is rejected at first. However, over the course of the series, this changes; Hazuki tells Haruto she won't date him until she is settled in college, Haruto finds a stable job and if his feelings remain unchanged.
- Ena Komiya (小宮 惠那 Komiya Ena)
- Voiced by: Lynn
- Ena is a second-year student, and a member of the photography club that is close to being disbanded. In order to save the club, she enters a photography competition. Later on, she develops a crush on Eita. She has a go-getter attitude, taking active steps to get what she wants, speaking her mind openly where everyone else is too nervous to speak up.
- Yoriko Inui (乾 依子 Inui Yoriko)
- Voiced by: Arisa Sakuraba
- Hazuki's best friend who constantly looks after her, speaks out on her behalf and helps her and Haruto get together. At one point she admits to Hazuki that she's also in love with someone, but refuses to say more. There are hints in the first half of the series that the person she's in love with might be Hazuki.
- Sanae Takahashi (高橋 早苗 Takahashi Sanae)
- Voiced by: Yuka Nukui
- Momoka Suzuki (鈴木 桃花 Suzuki Momoka)
- Voiced by: Reina Kondō
- Mayuko Satō (佐藤 真由子 Satō Mayuko)
- Voiced by: Sayaka Senbongi
- Junpei Saruwatari (猿渡 順平 Saruwatari Junpei)
- Voiced by: Kōhei Amasaki
- Haruto's best friend.
- Rikuto Ishigaki (石垣 陸生 Ishigaki Rikuto)
- Voiced by: Shōta Yamamoto
- Haruto's best friend.
- Tōru Shimizu (清水 徹 Shimizu Tōru)
- Voiced by: Junichi Yanagita
- Kaoru Yamaguchi (山口 薫 Yamaguchi Kaoru)
- Voiced by: Daiki Kobayashi
- Watanabe-sensei (渡辺先生 Watanabe Sensei)
- Voiced by: Toru Ohkawa
- The homeroom teacher of Mio and Haruto's class.
Kiseki Himura designed the characters, Atsushi Kobayashi directed the series with screenplay by Hajime Kamoshida. Hiroyuki Yoshii adapted Kiseki's art into animation. Keisuke Fukunaga produced the series. Pine Jam produced the animation. It aired from October 5 to December 28, 2017 on AT-X, Tokyo MX, TV Kanagawa, MBS, and BS Fuji's programming block Anime Guild. Nagi Yanagi serves as music producer as well performed the opening theme titled "Over and Over", while Karin Isobe, Yuna Yoshino, and Lynn performed the ending theme "behind".
|No.||Title||Original air date|
|1||"On your marks!"||October 5, 2017|
|Eita Izumi transfers to a new high school in his junior year. Upon arriving for his registration, he meets his childhood friend, Haruto Soma. They play a game of baseball, when Haruto reveals that Mio Natsume (Eita's childhood crush), also attends the high school.|
|2||"Question"||October 12, 2017|
|Haruto asks Hazuki out on a date vaguely. To his disappointment, Hazuki brings her little brothers along with her to the aquarium. The rest of the friends join them as they spend time together.|
|3||"Andante"||October 19, 2017|
|4||"Full swing"||October 26, 2017|
|All the friends plan to hang out at the shrine to celebrate New Year's Eve. Hazuki and Haruto end up alone, while Eita and Mio have a confrontation. Haruto confesses and gets rejected, while Eita and Mio have an argument which leads to Eita revealing his feelings for Mio.|
|5||"Rolling stones"||November 2, 2017|
|6||"Restart"||November 9, 2017|
|SP||"Unexpectedly, Trip of Just Because!"|
"Furari, Just Because! no Tabi" (ふらり、Just Because!の旅)
|November 16, 2017|
|The cast members visit the real world locations of the anime series "Just Because!"|
|7||"Snow day"||November 23, 2017|
|8||"High Dynamic Range"||November 30, 2017|
|9||"Answer"||December 7, 2017|
|10||"Childhood's end"||December 14, 2017|
|Mio buys chocolate for Eita but couldn't give it to him after she sees a photo of Komiya on his phone's home screen. Komiya plans on giving Eita chocolate, but realizes what happened and removes the photo and apologizes to Eita instead. Mio is seen outside the school crying and telling herself that she is serious about Eita. Morikawa asks Soma to meet her at the baseball and she tells him that she can't go out with him because they are going to be apart when she moves away for college; however, in the end, they agree that if Soma can wait until after she graduates and he's still interested in going out with her, she will go out with him. Eita goes out to meet Komiya, where she gives him a piece of chocolate and a handful of good luck charms for his exam. As a good luck charm for the photography contest, he gives back one of the charms that she'd pick out as the best one. Mio is home studying and pondering that Eita doesn't know how she feels. The episode ends with Komiya telling Eita she still likes him.|
|11||"Roundabout"||December 21, 2017|
|Komiya asks Eita to respond to her feelings after he passes the entrance exam and he agrees. Eita tells Soma that he'll confess to Mio if he passes his entrance exam. That night, Mio's sister hears from Eita that he got accepted to Joei—Mio's first choice college. On the exam day, while talking in school, Soma and Morikawa realize that Eita's taking the entrance exam for Mio's initial first choice, oblivious to the fact that she changed her first choice to Joei—the college Eita got accepted into. The results for both Eita and Mio are released with Mio passing hers. Meanwhile, Komiya gets the results of the photography contest.|
|12||"Get set, go!"||December 28, 2017|
|Eita fails his entrance exam. He receives a text from Mio telling him she passed the test for her first choice. It's graduation and everyone says their good-byes. Eita tells Komiya that he was happy when she confessed to him but still, he can't go out with her because there is someone else he likes. After he left, she is seen crying in the club room. Eita runs into Mio at Joei; he confesses to liking her and she reciprocates.|
A serialized novel adaptation of the anime was launched in Kadokawa's Da Vinci magazine starting October 2017 issue (released on September 6). The first chapter tells the prologue anime's plot. Atsushi Kobayashi is illustrating the series.
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