The romcom anime has cast Runa Sasaki and Ayaka Nanase.
The upcoming romcom anime, Tamon’s B-Side, based on Yuki Shiwasu’s manga series of the same name has announced additional characters and their voice cast. The series is going to premiere in January 2026, although the exact release date still remains unknown.
Tamon’s B-Side new cast and other details
According to the official website of the anime, the two new voice cast members are:
- Runa Sasaki as Homare Kinoshita
- Ayaka Nanase as Yamato Kinoshita
Homare is the younger sister of the protagonist Utage Kinoshita while Yamato is her younger brother. The previously announced cast of the anime consists of:
- 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
- Masaaki Mizunaka as Wataru Fujita
- Takako Honda as Izumi Shiraishi
- Saya Fukuzumi as Yuina
- Yurika Hirayama as Riko
Chika Nagaoka is directing the anime at J.C. Staff studio with Chiaki Nagai overseeing and writing the scripts. Yōko Itō is the character designer and chief animation director.Shochiku, King Records, and Hakusensha are producing the anime.
Other staff members working on the series 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
Viz Media publishes Yuki Shiwasu’s manga in English and describes the story as:
High schooler Utage Kinoshita works part-time as a housekeeper so she can afford her fangirl obsession with Tamon Fukuhara, her favorite member of boy band F/ACE. When work serendipitously sends her to the home of her idol, she discovers that the real Tamon couldn’t be more different from his wild and sexy onstage persona!