yutori performs the ending theme "Koe" for the anime Shuiro no Kamen, which premieres October 10, 2026. The band's vocalist Kotoko Sato also performs "ZUKIZUKI" with JUNNA for Atsushi Nishigori's omnibus film Grotesqqque.
yutori's recent activity is two theme-song credits for anime productions. The band performs the ending theme "Koe" for Shuiro no Kamen, the adaptation of Dr.Poro and Nabana Naba's manga. MAN WITH A MISSION handles the opening theme "Firestarter." The series premieres October 10, 2026 on Yomiuri TV and Nippon TV's Saturday 5:30 p.m. slot, excluding some regions, and runs two cours. Crunchyroll streams the series as it airs and screened it in U.S. theaters on September 21. Tetsuaki Watanabe directs at 100Studio.
The second credit is separate from the series. The official website for Atsushi Nishigori's omnibus film Grotesqqque confirmed that "ZUKIZUKI," performed by JUNNA and yutori vocalist Kotoko Sato, is part of the film. Yuyoyuppe wrote the lyrics and scored and arranged the music. The song is out on music services, and a collaboration music video is streaming. The song sits inside the "Yoroshiku Girl" segment, which streams early on Netflix in Japan from October 23 to November 5. The film opens in Japan on November 6.
Across the two, yutori holds a series ending theme tied to a broadcast and simulcast run, and a film song tied to a segment with an early streaming window. The stories name Kotoko Sato as the band's vocalist and do not give further detail on the band's lineup or other members.
Written with AI from the cited Yomimono stories below, each itself sourced.
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Oct 21
The official website for Atsushi Nishigori's omnibus film Grotesqqque confirmed that "ZUKIZUKI," performed by JUNNA and yutori vocalist Kotoko Sato, is part of the film. Yuyoyuppe wrote the lyrics and scored and arranged the music. The song is out on music services, and a collaboration music video is streaming. The film opens in Japan on November 6, with the "Yoroshiku Girl" segment streaming early on Netflix in Japan from October 23 to November 5.
Sep 11
Shuiro no Kamen begins broadcasting on October 10, 2026 on Yomiuri TV and Nippon TV's Saturday 5:30 p.m. slot, excluding some regions. MAN WITH A MISSION performs the opening theme Firestarter and yutori the ending theme Koe. Six cast additions were announced: Kenji Nojima as Hien, Aoi Koga as Lasgul, Yuki Shin as Clown, Akihisa Wakayama as Rinne, Aya Endo as the Death Spirit Mask, and Yui Horie as Master.
Sep 10
The anime adaptation of Dr.Poro and Nabana Naba's The Vermilion Mask manga will premiere on October 10, with Crunchyroll streaming the series as it airs and screening it early in U.S. theaters on September 21. A second main trailer previews the opening theme "Firestarter" by MAN WITH A MISSION and the ending theme "Koe" by yutori. Six cast members were added: Kenji Nojima as Hien, Aoi Koga as Lasgarl, Yuki Shin as Clown, Akihisa Wakayama as Rinne, Aya Endo as The Mask of Necromancy, and Yui Horie as Master. Taihi Kimura leads as Peru d'Arrest. The anime runs two cours. Tetsuaki Watanabe directs at 100Studio, with Daisuke Ohigashi on series composition, Hisashi Higashijima on character designs, and Arisa Okehazama composing music. The manga launched in Shonengahosha's Young King Ours in February 2021, and Orange's emaqi publishes it in English.