Death Game Manga no Kuromaku Satsujinki no Imouto ni Tensei shite Shippai shita summary: One day, Mai remembers that her perfect stepbrother is a character in a death game manga, and that one year later he will hold a death game involving all of his classmates, killing his sister in the process. Mai plans a variety of surprises for her stepbrother every day based on what he said in the manga, \"Nothing unexpected happened, so I was bored,\" but as the days go by, he begins to show abnormal signs... Only I know what my brother\'s really like. Pepu\'s comicalization of Inada Sou\'s popular web novel!