Oblivion Battery

Oblivion Battery (忘却バッテリー) is a Japanese manga series written and illustrated by Eko Mikawa. It has been serialized via Shueisha's online manga app Shōnen Jump+ since April 2018, and has been collected in 17 tankōbon volumes as of January 2024. An original net animation (ONA) adaptation produced by MAPPA streamed in October 2020 as part of the Jump Special Anime Festa 2020 online event. An anime television series, also by MAPPA, aired from April to July 2024.

Plot
In the world of middle school baseball, Haruka Kiyomine and Kei Kaname are the genius battery who were once feared by everyone. This includes Taro Yamada, who after competing and losing to them, decided to quit baseball and go to Kotesashi High School, a school with no baseball club. However to his surprise, he encounters Haruka and Kei and discovers that Kei suffers from amnesia — losing all memory of playing baseball and is refusing to play again. Joining the newly established baseball club, Taro and Haruka decide to bring Kei back to baseball by showing him the fun of it. Joined by Aoi Todo and Shunpei Chihaya, two other genius baseball players who had also quit baseball after getting crushed by Haruka and Kei. The five begin once again living their baseball life.

Characters

 * Haruka Kiyomine (清峰 葉流火)


 * Kei Kaname (要 圭)


 * Taro Yamada (山田 太郎)


 * Shunpei Chihaya (千早 瞬平)


 * Aoi Todo (藤堂 葵)


 * Kazuki Tsuchiya (土屋 和季)


 * Eiichiro Kokuto (国都 英一郎)


 * Hironobu Makita (巻田 広伸)


 * Shuto Kirishima (桐島 秋斗)

Manga
Oblivion Battery is written and illustrated by Eko Mikawa. The series began in Shueisha's Shōnen Jump+ online manga app on April 26, 2018. Shueisha has compiled its chapters into individual tankōbon volumes. The first volume was released on September 4, 2018. As of January 4, 2024, 17 volumes have been released.

Original net animation
The 40th issue of Shueisha's Weekly Shōnen Jump released on September 7, 2020 announced that the series would be adapted into an original net (ONA) anime as part of the Jump Special Anime Festa 2020 online event. The ONA is animated by MAPPA and directed by Parako Shinohara, with Noriko Itou as character designer and chief animation director, and Hisako Akagi as art director. It was streamed as part of the event on October 11, 2020.

TV series
An anime television series adaptation was announced on August 3, 2023. It is produced by MAPPA, and directed by Makoto Nakazono, with assistant direction by Takeshi Iida, scripts written by Michiko Yokote, characters designed by Hitomi Hasegawa, and music composed by Tomoki Kikuya and Hiroko Yamasaki. The series aired from April 10 to July 3, 2024, on TV Tokyo and its affiliates. The opening theme song is "Lilac", performed by Mrs. Green Apple, while the ending theme song is "Wasurena Uta" (忘レナ唄), performed by Macaroni Enpitsu. Crunchyroll licensed the series. Medialink licensed the series in East, Southeast Asia and Oceania (except Australia and New Zealand), and is streaming it on its Ani-One Asia YouTube channel.

Reception
The series took sixth place in the web manga category of the Next Manga Awards 2019. The series, alongside Dungeon People, won the Grand Prize in the "I Want to Read It Now" category of the 2nd Rakuten Kobo E-book Awards in 2024.