In a World Full of Zombies Gets Its Opening Theme Song

Fans of the upcoming anime In a World Full of Zombies I’m the Only One Who Doesn’t Get Attacked have something new to get excited about. The production team just shared that the music project RetBear will perform the opening theme song for the show. The song is titled No Reaction and it was produced by the popular Vocaloid creator Kairiki Bear.

Kairiki Bear is well known for hits like Venom and Darling Dance, so the announcement of his involvement has generated a lot of buzz. This reveal arrived on October 10 to celebrate World Zombie Day, adding a fun bit of thematic timing to the news.

This anime is currently scheduled to premiere in January 2027. With the music team now in place and a new key visual released alongside the song announcement, the project is clearly picking up steam as we head toward the start of the year.