The highly anticipated second trailer for the Tamon’s B-Side anime has been released, confirming that the series will begin streaming on January 1, 2026. This new preview offers fans a deeper look into the adaptation of Yuki Shiwasu’s popular shōjo manga, building excitement for its winter premiere. The anime will also officially air on Tokyo MX and BS11 starting January 4, 2026.
What the New Trailer Showcases
The second trailer provides further glimpses into the dynamic between high schooler Utage Kinoshita and the idol Tamon Fukuhara, her favorite member of the boy band F/ACE. The footage is expected to highlight Tamon’s contrasting personas: his “wild and sexy” on-stage idol image (“Hottiehara”) and his insecure, gloomy off-stage self (“Gloomyhara”). Fans can anticipate more of the comedic and heartfelt interactions that define the manga, as Utage strives to support Tamon and keep his secret.
The trailer is also likely to feature more of the in-universe boy band F/ACE, building upon the previous music video releases for their songs like “F/ACE OFF” and “Supernova.”
January 2026 Premiere and Streaming Details
While the linear television broadcast for Tamon’s B-Side is set for January 4, 2026, on Tokyo MX and BS11 in Japan, the anime will actually become available for streaming three days earlier, on January 1, 2026. This early streaming debut allows international fans to jump into the series right at the start of the new year. The anime’s official accounts had previously announced a January 2026 broadcast window.
Cast and Staff Bringing the Manga to Life
J.C. Staff is producing the Tamon’s B-Side anime, with Chika Nagaoka (known for Case Closed: The Fist of Blue Sapphire) directing the series. Chiaki Nagai is handling the series composition and episode scripts, while Yōko Itō is responsible for character designs and serves as chief animation director. The music for the series is composed by Takashi Ōmama and Natsumi Tabuchi.
The main voice cast includes:
- Saori Hayami as Utage Kinoshita
- Kakeru Hatano as Tamon Fukuhara
- Shōya Chiba as Ōri Sakaguchi
- Tasuku Hatanaka as Keito Tachibana
- Kōhei Amasaki as Natsuki Ishibashi
- Ryūho Nagaoka as Rintarō Kai
Additional cast members recently announced include Runa Sasaki as Homare Kinoshita and Ayaka Nanase as Yamato Kinoshita, Utage’s younger siblings. Masaaki Mizunaka, Takako Honda, Saya Fukuzumi, and Yurika Hirayama have also joined the cast in other roles.
The Story of Tamon’s B-Side
Tamon’s B-Side follows high school student Utage Kinoshita, a devoted fangirl of Tamon Fukuhara, a member of the popular idol group F/ACE. To fund her obsession, Utage works part-time as a housekeeper. A twist of fate leads her to clean Tamon’s house, where she discovers that his real personality is far from his charismatic public image. Off-stage, Tamon is an anxious and insecure individual. Utage, deeply caring for her idol, vows to protect his secret and support him through his struggles, navigating the hilarious and heartwarming challenges of dealing with his dual personalities.
The original manga by Yuki Shiwasu was initially a one-shot in Hakusensha’s Hana to Yume magazine in August 2021 before being serialized in the same magazine from October 2021. Viz Media has licensed the series for English publication.
