Serial Killer Isekai Ni Oritatsu Isekai: Battle Royale
Summary
A goddess, troubled by the fact that there are too many reincarnated people, declares that she will start a massacre among them.The official spin-off of "The Serial Killer Reincarnated into the Another World" begins!---Note: The main 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, as Kawamoto Homura.