The Strongest Oni Sauce

When he woke up, Luo Chen was mysteriously reborn and returned to his senior year of high school. But, is there something wrong... There is a deskmate named Asuna Yuuki, a school beauty named Kurumi Tokisaki, and a class monitor named Reimu Hakurei... Can you be more ridiculous? Has the school been invaded by Japanese cartoon characters? But this is not the point! The point is, why do I suddenly have an extra sister... And he even saw her naked! ! ! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.