The Dark Demon Emperor in Demon High School

Reborn before the start of Demon High School, Ruyu Yicheng, who has a combat system, declared to the world that human abilities have limits. I have learned one thing from my short life... The more you play tricks, the more you will find that there are limits to human abilities... Unless you surpass humans. I'm no longer a human being, jojo! Amano Yuma; please date me Rias; I like you, please be my boyfriend Wall-E; Sekiryuutei, fight me But it's not bad to become a devil once you talk about it This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.