Iwamoto-senpai no Suisen Anime Adds Cast, Theme Songs, Sets July 4 Premiere
The July 4 premiere date places the series in the competitive summer 2026 season, with the involvement of Studio Deen and a director known for Yakuza Fiancé signaling a production with established genre experience.
Reporting from 2 sources: Anime Trending, MyAnimeList.
The television anime adaptation of Hiroshi Shiibashi's manga Iwamoto-senpai no Suisen has announced two new supporting cast members and its theme songs, along with a July 4 premiere date. Voice actors Gen Satou and Shinnosuke Tokudome join the cast as Ryuu Sazame and Mizuka Awatama, respectively. Japanese boy-band THE JET BOY BANGERZ performs the opening theme "BUDDING," and WOLF HOWL HARMONY performs the ending theme "Koko ni Iru." The anime will air on Tokyo MX at 10:30 p.m. and on Sun TV every Saturday starting July 4. Toshifumi Kawase directs the series at Studio Deen, with Keiichirou Oochi handling series composition, Atsuko Nakajima designing characters, and Yoshiaki Dewa and Toru Ishitsuka composing the music. The previously announced main cast includes Taito Ban as Kodo Iwamoto, Yuki Sakakibara as Kai Haramachi, and Kento Ito as Soichiro Amaba, among others. Shiibashi began the manga as a one-shot in Shonen Jump+ in March 2020 before it began regular serialization in Ultra Jump in February 2021. Shueisha published the 13th volume on January 19, with the 14th volume scheduled for July 17.
Gen Satou, known for his role as Chrome in Dr. Stone, voices Ryuu Sazame. Shinnosuke Tokudome, who voiced Wada in Let's Go Karaoke!, plays Mizuka Awatama. The previously announced main cast includes Taito Ban as Kodo Iwamoto, Yuki Sakakibara as Kai Haramachi, Kento Ito as Soichiro Amaba, Akira Ishida as Bokyo Kitsujo, Masaya Fukunishi as Oni Okuaki, and Takuma Nagatsuka as Shizuma Aonuma.
Director Toshifumi Kawase previously helmed Yakuza Fiancé: Raise wa Tanin ga Ii. Series composer Keiichiro Ochi worked on The Angel Next Door Spoils Me Rotten. Character designer Atsuko Nakajima contributed to Komi Can't Communicate and the Ranma 1/2 remake. Music composers Yoshiaki Dewa and Toru Ishitsuka have credits on Jigokuraku and Kuro no Su: Chronus, respectively.
The manga is written by Hiroshi Shiibashi, creator of Nura: Rise of the Yokai Clan. The story follows Kodo Iwamoto, a middle school student in an army-controlled early 20th century school who investigates supernatural phenomena. He encounters a boy with a special power and offers him a recommendation letter to join the school.
Synthesized by Yomimono from the 2 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.