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Tamon's B-Side Anime's 1st Video Reveals More Cast & Staff, Insert Song

The official website for the anime of Yuki Shiwasu's Tamon’s B-Side (Tamon-kun Ima Docchi!?) manga began streaming the anime's first promotional video on Tuesday. The video announces and previews the insert song "Supernova" by the in-story idol group F/ace, and also announces more cast and staff members for the anime.

The newly announced cast members are:

• Masaaki Mizunaka as Wataru Fujita
• Takako Honda as Izumi Shiraishi
• Saya Fukuzumi as Yuina
• Yurika Hirayama as Riko

The newly announced staff members are:

• Chief Animation Directors: Mitsuru Chiba, Airi Tsuyuki
• Prop Designer: Moe Fujii
• Music: Takashi Ōmama, Natsumi Tabuchi
• Art Director: Li Yu
• CG Director: Ayaka Momma
• 2D Design: Makoto Yoshigaki
• Compositing Director of Photography: Soyaka Aoyagi
• Color Key Artist: Miho Kimura
• Editing: Michi Takigawa
• Sound Director: Fumihiko Ōtera
• Sound Effects: Sachiko Nishi
• Sound Production: Rie Tanaka

The anime will premiere in January 2026. Chika Nagaoka (Uta no Prince Sama Maji Love Kingdom, Utano☆Princesama Maji LOVE ST☆RISH Tours) is directing the anime at J.C. Staff. Chiaki Nagai (Utano☆Princesama Legend Star, The IDOLM@STER Cinderella Girls) is both writing and overseeing the series scripts. Yōko Itō (Delico's Nursery, Love Stage!!, Skate-Leading Stars) is the character designer and chief animation director. Shochiku, King Records, and Hakusensha are producing the anime.

The anime stars:

• Saori Hayami as Utage Kinoshita
• Kakeru Hatano as Tamon Fukuhara
• Shōya Chiba as О̄ri Sakaguchi
• Tasuku Hatanaka as Keito Tachibana
• Kōhei Amasaki as Natsuki Ishibashi
• Ryuuho Nagaoka as Rintarо̄ Kai

Viz Media licensed the manga, and it describes the story:

Tamon is an insecure mess in real life, and what's worse, he's threatening to quit! Utage refuses to let anyone stand in Tamon's way—least of all himself. What's a fangirl to do but roll up her sleeves and support her favorite singer with everything she's got?

Shiwasu (Takane & Hana) debuted the manga in Hakusensha's Hana to Yume magazine in October 2021. The series is based on Shiwasu's earlier one-shot manga of the same name.

The manga was nominated for Best Shōjo Manga in Kodansha's 47th annual Manga Awards in 2023. The manga ranked at #9 on the top 20 on its list of manga for female readers in the 2023 edition of Takarajimasha's Kono Manga ga Sugoi! (This Manga Is Amazing!) guidebook.

Sources: Tamon’s B-Side anime's website, Comic Natalie