Manga Miki Yoshikawa first published the series as a one-shot in
Weekly Shōnen Magazine in September 2019, as part of a promotion in which she would publish three one-shots and readers could vote on which would receive a serialization. The first volume was released on May 15, 2020. As of April 2026, thirty-two volumes have been released.
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Anime In April 2021, an
anime television series adaptation was announced. It is animated by
Shin-Ei Animation and
SynergySP and directed by Yoshiyuki Shirahata, with Hiroaki Akagi serving as chief director, Yasuhiro Nakanishi overseeing series scripts, and Aya Takano designing characters. The series aired from April 24 to October 2, 2022, on
TV Asahi's
NUMAnimation block. It aired for two consecutive
cours. The first opening theme song is by
Kiyoe Yoshioka, vocalist of the Japanese duo
Ikimonogakari, while the ending theme song is by
Sangatsu no Phantasia. The second opening theme is "Glitter" by
Sumika, while the second ending theme is "Hello Hello Hello" by
Eir Aoi.
Crunchyroll licensed the series for worldwide streaming outside of Asia. A spin-off mini anime series titled
Kakkō no Iikagen premiered on
YouTube on April 28, 2022. On July 10, 2022, a promotional video for the second cours starting on July 23 was released. Eir Aoi performed the new ending theme song "Hello Hello Hello". A second season was announced in July 2024. It is produced by
Okuruto Noboru and written and directed by Masakazu Hishida, with Kyoko Chika designing the characters, and Rei Ishizuka returning as the composer. The season aired from July 8 to September 23, 2025, on
Tokyo MX and other channels. The opening theme song is performed by
Asmi, while the ending theme song is by
22/7.
Episodes Season 1 Season 2 == Reception ==