Snowball Earth (manga)

Snowball Earth (manga)

Snowball Earth (Japanese: スノウボールアース, Hepburn: Sunoubōru Āsu) is a Japanese manga series written and illustrated by Yuhiro Tsujitsugu. It has been serialized in Shogakukan's seinen manga magazine Monthly Big Comic Spirits since January 2021. An anime television series adaptation produced by Studio Kai is set to premiere in April 2026.

Plot

Snowball Earth (manga)

Tetsuo, a shy boy, and his giant robot Yukio fight against monsters that threaten Earth from outer space. After the final battle, Tetsuo returns to Earth, only to find it covered in snow and ice. Tetsuo resolves to overcome his shyness and save what remains of humanity.

Characters

Snowball Earth (manga)

Tetsuo Yabusame (流鏑馬鉄男, Yabusame Tetsuo): Voiced by: Takuto Yoshinaga Yukio (ユキオ): Voiced by: Daisuke Hirakawa Ao Nogi (乃木 蒼, Nogi Ao): Voiced by: Ami Koshimizu Hagane Takimura (瀧村矧音, Takimura Hagane): Voiced by: Konomi Tamura Isseki Sagami (相模 逸石, Sagami Isseki): Voiced by: Tomokazu Sugita Nayuta Izumi (泉那 由他, Izumi Nayuta): Voiced by: Kengo Kawanishi Tamiya Sakurai (桜井多 見哉, Sakurai Tamiya): Voiced by: Tomohiro Ōno Yuma Uzuki (卯月 ゆま, Uzuki Yuma): Voiced by: Manami Narahira Otoichi Kinoe (甲 乙一, Kinoe Otoichi): Voiced by: Anna Nagase Makoto Saionji (西園寺 真琴, Saionji Makoto): Voiced by: Chitose Morinaga Riko Akagi (赤城 莉子, Akagi Riko): Voiced by: Maki Kawase

Media

Manga

Written and illustrated by Yuhiro Tsujitsugu, Snowball Earth has been serialized in Shogakukan's seinen manga magazine Monthly Big Comic Spirits since January 27, 2021. Shogakukan has collected its chapters into individual tankōbon volumes. The first volume was released on July 30, 2021. As of December 26, 2025, ten volumes have been released.

In June 2023, Viz Media announced that they have licensed the manga for an English release in North America, and the first volume was released on April 16, 2024.

Volumes

No.	Original release date	Original ISBN	English release date	English ISBN
1	July 30, 2021	978-4-09-861107-2	April 16, 2024	978-1-9747-4377-3
2	November 30, 2021	978-4-09-861187-4	July 16, 2024	978-1-9747-4615-6
3	March 30, 2022	978-4-09-861263-5	October 15, 2024	978-1-9747-4914-0
4	August 30, 2022	978-4-09-8613960	January 21, 2025	978-1-9747-5164-8
5	February 28, 2023	978-4-09-861589-6	April 15, 2025	978-1-9747-5247-8
6	October 30, 2023	978-4-09-862646-5	August 19, 2025	978-1-9747-5526-4
7	April 30, 2024	978-4-09-862763-9	November 18, 2025	978-1-9747-5904-0
8	November 28, 2024	978-4-09-863105-6	February 17, 2026	978-1-9747-6141-8
9	July 30, 2025	978-4-09-863518-4	—	—
10	December 26, 2025	978-4-09-863660-0	—	—

Anime

An anime television series adaptation was announced on July 17, 2025. The series will be produced by Studio Kai and directed by Munehisa Sakai, with Takeshi Iwata serving as assistant director, Shigeru Murakoshi handling series composition, Toshiya Kono designing the characters and serving as chief animation director, and Tatsuya Kato, Hiroaki Tsutsumi and Yuki Kanesaka composing the music. It is set to premiere on April 3, 2026, on the Friday Anime Night programming block on Nippon TV and its affiliates. The opening theme song is "Zero", performed by Tuki, while the ending theme song is "Ima Kono Mune ni Tagiru no wa" (今この胸に滾るのは; 'What is Surging in My Heart Now'), performed by Ai Higuchi. Crunchyroll will stream the series. Muse Communication licensed the series in South and Southeast Asia.

Reception

Snowball Earth (manga)

The manga was recommended by animator and director Hideaki Anno, video game creator Hideo Kojima, and manga artist One.