# Oblivion Battery

Oblivion Battery (Japanese: 忘却バッテリー, Hepburn: Bōkyaku Batterī) 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 19 tankōbon volumes as of September 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. A second season has been announced.

## 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, Kiyomine Haruka)

    Voiced by: Yoshimasa Hosoya (ONA), Toshiki Masuda (TV series)

### Kei Kaname (要 圭, Kaname Kei)

    Voiced by: Mamoru Miyano (ONA and TV series)

### Taro Yamada (山田 太郎, Yamada Tarō)

    Voiced by: Jun Fukuyama (ONA), Yuki Kaji (TV series)

### Shunpei Chihaya (千早 瞬平, Chihaya Shunpei)

    Voiced by: Yoshitsugu Matsuoka (ONA), Nobunaga Shimazaki (TV series)

### Aoi Todo (藤堂 葵, Aoi Tōdō)

    Voiced by: Tatsuhisa Suzuki (ONA), Yōhei Azakami (TV series)

### Kazuki Tsuchiya (土屋 和季, Tsuchiya Kazuki)

    Voiced by: Yoshitaka Yamaya (TV series)

### Eiichiro Kokuto (国都 英一郎, Kokuto Eiichirō)

    Voiced by: Takeo Ōtsuka (TV series)

### Hironobu Makita (巻田 広伸, Makita Hironobu)

    Voiced by: Mark Ishii (TV series)

### Shuto Kirishima (桐島 秋斗, Kirishima Shūto)

    Voiced by: Kengo Kawanishi (TV series)

## Media
### 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 December 4, 2024, 20 volumes have been released.

#### Volumes

| No. | Release date | ISBN |
| 1 | September 4, 2018 | 978-4-08-881603-6 |
| 2 | December 4, 2018 | 978-4-08-881688-3 |
| 3 | March 4, 2019 | 978-4-08-881765-1 |
| 4 | June 4, 2019 | 978-4-08-882013-2 |
| 5 | August 2, 2019 | 978-4-08-882026-2 |
| 6 | December 4, 2019 | 978-4-08-882147-4 |
| 7 | May 13, 2020 | 978-4-08-882308-9 |
| 8 | September 4, 2020 | 978-4-08-882451-2 |
| 9 | March 4, 2021 | 978-4-08-882617-2 |
| 10 | June 4, 2021 | 978-4-08-882699-8 |
| 11 | August 4, 2021 | 978-4-08-882739-1 |
| 12 | January 4, 2022 | 978-4-08-882887-9 |
| 13 | May 2, 2022 | 978-4-08-883123-7 |
| 14 | September 2, 2022 | 978-4-08-883252-4 |
| 15 | March 3, 2023 | 978-4-08-883442-9 |
| 16 | August 4, 2023 | 978-4-08-883617-1 |
| 17 | January 4, 2024 | 978-4-08-883760-4 |
| 18 | June 4, 2024 | 978-4-08-884055-0 |
| 19 | September 4, 2024 | 978-4-08-884184-7 |
| 20 | December 4, 2024 | 978-4-08-884326-1 |
| 21 | April 4, 2025 | 978-4-08-884473-2 |

### Anime
#### 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.
A second season of the anime series was announced on November 10, 2024.

##### Episodes

| No. | Title | Directed by | Written by | Storyboarded by | Original release date |
| 1 | "I'll Make You Remember" Transliteration: "Omoidasasete Yaru yo" (Japanese: 思い出させてやるよ) | Unknown | Unknown | TBA | April 10, 2024 (2024-04-10) |
| 2 | "Wanna Play Together?" Transliteration: "Issho ni Yaru?" (Japanese: 一緒にやる？) | Unknown | Unknown | TBA | April 17, 2024 (2024-04-17) |
| 3 | "So What?" Transliteration: "Dakara, Nanda" (Japanese: だから、なんだ) | Unknown | Unknown | TBA | April 24, 2024 (2024-04-24) |
| 4 | "I Won't Hold Back" Transliteration: "Yōsha Shinaiyo" (Japanese: 容赦しないよ) | Unknown | Unknown | TBA | May 1, 2024 (2024-05-01) |
| 5 | "What Led Us To Quit" Transliteration: "Yameta Kikkake No" (Japanese: 辞めたきっかけの) | Unknown | Unknown | TBA | May 8, 2024 (2024-05-08) |
| 6 | "I Do!" Transliteration: "Yaru!!" (Japanese: やる!!) | Unknown | Unknown | TBA | May 15, 2024 (2024-05-15) |
| 7 | "Interesting Guys" Transliteration: "Omoshiroi Yatsura" (Japanese: 面白いやつら) | Unknown | Unknown | TBA | May 22, 2024 (2024-05-22) |
| 8 | "3D Baseball Isn't Really My Thing..." Transliteration: "Sanjigen no Yakyū wa Chotto..." (Japanese: 3次元の野球はちょっと…) | Unknown | Unknown | TBA | June 5, 2024 (2024-06-05) |
| 9 | "Who Do You Think You're Talking To?" Transliteration: "Dare ni Mukatte Kuchi Kīte nda" (Japanese: 誰に向かって口きいてんだ) | Unknown | Unknown | TBA | June 12, 2024 (2024-06-12) |
| 10 | "Can't Run From Them" Transliteration: "Nigerarenai" (Japanese: 逃げられない) | Unknown | Unknown | TBA | June 19, 2024 (2024-06-19) |
| 11 | "I'm a Liar" Transliteration: "Ore wa Usotsuki da" (Japanese: 俺は噓つきだ) | Unknown | Unknown | TBA | June 26, 2024 (2024-06-26) |
| 12 | "Did You Hate It?" Transliteration: "Iyadatta ka" (Japanese: 嫌だったか) | Unknown | Unknown | TBA | July 3, 2024 (2024-07-03) |

## 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.