Akuyaku Reijo no Ani ni Tenseishimashita

<p>"Onii-tama?"<br/>Cain , who reincarnated as one of the love interests of an otome game, screamed at the loveliness of his sister, Diana. I can't believe that this angel is going to be a villainess with countless bad ends--No, there is no way that such a future can exist!<br/>Clenching his fist tightly, he raises his sister into a gentle lady, while also dispelling the darkness held by the love interests in place of the heroine.<br/>Relying on his game knowledge from his previous life and an orphaned chamberlain. Everything for his beloved sister-the brother's challenge begins now!</p>