I Reincarnated as the Little Sister of a Death Game's Murder Mastermind and Failedデスゲーム漫画の黒幕殺人鬼の妹に転生して失敗した; I Reincarnated as the Little Sister of a Death Game's Murd3r Mastermind and Failed; I Reincarnated As The Little Sister Of A Death Game’S Murd3R Mastermind And Failed