sudekuma

One day, Onitsuka Yamato, an office worker, kills another man who attacked him. When he took that man's life, a sound effect rang in his head informing him of his own strengthening and the acquisition of a spell. He had become a "murdelizer", a being whose level goes up when he kills someone. Yamato resolves to survive - even if it means killing people, kill someone within a week or else he will die.

High school student Namiki Hiroto found himself possessing, "Zeke Lagias" a character from "Wish Soul", a game that he had played many times. Zeke is the worst villain in the game, and no matter which route you take, he's a character whose death is certain... In order to survive, he tried fixing his personality, but he can only speak like a villain?! "...If I really can't avoid making villain-like moves, then I just have to get stronger to survive!!"

"She" was supposed to have fallen into eternal sleep. However, a sudden accident woke her up, and "he" find "herself" reincarnated in a game "he" was playing when "he" was alive. "I" have reincarnated as my own character, a beautiful vampire princess, and while surrounded by her demon underlings that "I" raised in the game, "I" ended up reigning at the top of a demon empire...!