OP theme song to be sung by RetBear
Produced by Vocaloid producer Kairiki Bear!
Retbear is a music project by Kairiki Bear, a popular Vocaloid producer known for hits such as “Venom” (75 million views on YouTube) and “Darling Dance” (49 million views). They released “No Reaction (unknown Vo: 0in),” their first new song in almost four years since “Down Timer” came out in January 2023. On October 10, also known as World Zombie Day, it was announced that this song will serve 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 manga series has amassed over 9.5 million downloads and sold more than 750,000 copies (including spin-offs) to date.
TV anime In a World Full of Zombies I’m the Only One Who Doesn’t Get Attacked will begin airing January 2027 on AT-X. The upcoming anime’s key visual and main promotional video has also been revealed.
TV Anime In a World Full of Zombies I’m the Only One Who Doesn’t Get Attacked Main PV:
Information
TV Anime In a World Full of Zombies I’m the Only One Who Doesn’t Get Attacked
Opening theme song: “No Reaction”
Song Artist: RetBear (unknown Vo: 0in)
Lyrics, composition, arrangement: RetBear
Streaming Information: Coming soon.
Retbear Profile
A music project launched by composer/producer Kairiki Bear, a leader in the Vocaloid scene who has a YouTube channel with over 480 million views.
Retbear is an “anonymous” unit that combines Kairiki Bear with a different unknown vocalist for each song. The guest vocalist performs under an anonymous name “unknown Vo” for each track. They have released two anime tie-in songs to date.
TV anime Black Summoner opening theme song “Mannaka DEAD END (unknown Vo: 10fu)”
TV anime REVENGER opening theme song “Down Timer (unknown Vo: O2)”
Now, they’ve unveiled “No Reaction (unknown Vo: 0in),” their first new song in four years, which will serve as the opening theme song to upcoming TV anime In a World Full of Zombies I’m the Only One Who Doesn’t Get Attacked, set to air in January 2027.
Official X: https://twitter.com/retbear_info
Official TikTok: https://www.tiktok.com/@retbear_info
Official YouTube: https://www.youtube.com/channel/UCuR2dINjC3ZVRhLT8YrX26w