シリアルキラー異世界に降り立つ 異世界バトルロイヤル, Serial Killer Isekai ni Oritatsu: Isekai Battle Royale, Serial Killer Reincarnated in Another World: Battle Royale In Another World

A story about a serial killer who is asked by a goddess to kill reincarnated people who have become evil, and is reincarnated in another world, where he then kills the reincarnated people. The original story was written by Ichigo Hitotsubu, but with the start of the new series, it was revealed that he is also working under a different name for Kawamoto. In the beginning, the goddess, worried about the excessive number of reincarnated people, declares that the reincarnated people will start killing each other.