Kono Oto Tomare! Sounds of Life (この音とまれ!, "Stop at This Sound!") is a Japanese manga series written and illustrated by Amyu. The series began publication in Shueisha's Jump Square magazine in August 2012, and has been compiled into 19 tankōbon volumes as of December 4, 2018. It has been reported that over 2.3 million copies of the manga have been sold. An anime television series adaptation by Platinum Vision premiered on April 2019.
The story focuses on the Koto club of the Tokise high school. Takezo Kurata, in his second year, is the only member left in the Koto club, after all the senior members have graduated. While he is trying his best to recruit more members into the club, Kudo Chika submits his application. But, since Kudo is known to be a delinquent, one who destroyed his own grandfather's koto shop, Takezō is apprehensive about him. Things change when he comes to know the truth. Also joining the club is the Koto prodigy, Satowa Hōzuki, who has her own agenda. More members join the club in time, holding their own reasons for joining. However, in the end, they all have the same goal - to play at the Koto Nationals competition.
Kudo, fondly called by his first name by most of his friends, has a very childish personality. He is straightforward with his words, but doesn't clearly know how to express himself or understand others, since he hasn't had many friends, spending most of his younger years being a delinquent. He changes his attitude because of his grandfather, and develops an interest towards the Koto because of him. He likes to help out his friends, but becomes shy when they thank him.
Although he starts with basically no knowledge about the Koto, he is able to learn playing pretty quickly. He even has the ability to learn to play right after seeing someone else (for example, Satowa) playing it a few times. After learning that Satowa is a genius of a very high caliber, he makes reaching her level (as a rival) his goal. He later develops a crush on her but does not understand his own feelings, leading to him wondering why he feels the urge to touch or embrace her. He has an earnest and diligent attitude when playing the Koto and it seems to flow into his music too.
Chika currently stays with his aunt, Isaki. The one who understands him the most is his friend, Takaoka.
The president of the Koto club; settling into the role since there are no other senior members left after all his seniors graduated. He is also relatively new to the Koto, and initially feels the pressure of being the president, but calms down once he knows that he has the help and support from all the other members of the club.
Initially, his personality was like that of a coward, and someone who lacked confidence, no matter what he did. This changes later, and he becomes quite the dependable senior and president. Mostly, he has a serious personality, and approaches everything he does earnestly.
He has a crush on Kurusu, who reciprocates the feeling, even though they have not confessed to each other, being completely unaware of the other's feelings.
A prodigal Koto player. Initially, she shows off a stuck up attitude, but very easily settles down and becomes an integral part of the Koto club. Since the other members have practically no professional knowledge of the Koto, she becomes somewhat of a teacher to them. This role is subdued after Doujima starts teaching her.
As a professional player, Satowa can play almost any of the types of Koto easily. A hard worker by nature, she tries to understand the 'meaning' of the song to understand its nature, to play it better. Although she started teaching the other members of the club, she herself admits that teaching is not her thing. She sometimes becomes unable to teach/explain concepts because playing comes most naturally to her, and she finds explaining/correcting difficult.
When she started at Tokise, she was already estranged from her mother and the Hōzuki group. Estranged from her mother, who was losing herself under the stress of managing the Hōzuki group, Satowa tried to call out for her through her music. But this ended up in her excommunication from the group and abandonment by her mother. This breaks Satowa's heart. However, later, with everyone's support she is able to make amends with her mother after she watches her performance at the National Preliminaries. She is also officially reinstated as the heir of the Hōzuki group.
She later has a crush on Kudo, but tries hard not to show or acknowledge it.
Kudo's friend from before the series started. He is good at studying, cooking and at fighting too. He is the one who understands Kudo the most. He also explained Kudo's situation to Takezō when he wanted to join the Koto club. Kudo hangs out at his place, even when he is feeling off, making him feed him. He also ends up being Kudo and his other friends' cram teacher when exams are due.
A math teacher at Tokise High and the Koto Club's advisor. Initially he feigned ignorance of his musical background, though it's later revealed that his parents are world renowned musicians. As a child, he had no interest in playing music whatsoever other than listening to it. When he was seven, his father discovered his talent for writing musical scores and quickly took upon him to brand his son as a child prodigy. Because of this, Suzuka began to disdain music but his interest is later revitalized after becoming the advisor for the Koto club. He often writes pieces for the club as well as gives practice advice, while leaving the actual koto teaching to Akira.
The apparent heir to the Tetsuki Group, a multibillion dollar conglomerate. She became the heir after the death of her parents, causing her older brother to drop out of college and attempt to find a job in order to support her and their grandmother. In her childhood, her brother was a renowned koto player and inspired Akira to pick it up. After her brother had also quit the koto, Akira was forced to become better at playing the koto and became the face of their group. For malicious reasons, she became Tokise High's koto instructor, but later officially took up the position after realizing the club's genuine intent to play the koto.
An anime television series adaptation has been announced, and it aired from April 6 to June 29, 2019 on Tokyo MX, BS11, AT-X, GYT, Wowow, and HTB. The series is animated by Platinum Vision and directed by Ryōma Mizuno, with Ayumu Hisao handling series composition, and Junko Yamanaka designing the characters. It was announced that the series will be split-cour, with the second season airing from October 5, 2019.Shouta Aoi performed the series' opening theme song "Tone", while Yuma Uchida performed the series' ending theme song "Speechless". Aoi will also perform the series' second opening theme song "Harmony", while Uchida will also perform the series' ending theme song "Rainbow".Funimation has licensed the series, and will be producing the dub as it airs.