RetBear Performs Opening Theme for Zombies Anime
RetBear will perform "No Reaction" as the opening theme for the TV anime adaptation of In a World Full of Zombies I'm the Only One Who Doesn't Get Attacked. The song is produced by Kairiki Bear, the Vocaloid creator behind "Venom" and "Darling Dance," and features a guest vocalist credited only as unknown Vo: 0in. The announcement was made on October 10, which is also World Zombie Day, alongside the reveal of the anime's key visual and main promotional video. The series is scheduled to begin airing on AT-X in January 2027. The source manga has recorded more than 9.5 million downloads and sold over 750,000 copies, including spin-offs. "No Reaction" is RetBear's first new release in almost four years, following "Down Timer" in January 2023. Digital streaming details for the song have not yet been announced.