Riyu Kou....prince of Demon world....all the demon are like eat human and prison them all....but that's just a rumors...Fairy world and Demon world are enemy....one day a princess of Fairy world came to our world (Demon world)....she meet many demon and suddenly....we accident bagging....she wearing mask and white clothes....one of demon notice the girl is Fairy....I help the girl to run and hide her to my secret base....she thank me many time cause I save her....she take off her mask....she like demon while I looking her her eyes are black like darkness and her hair are black too....she don't look like a fairy....she explain me why she don't lile Fairy....she said this a punishment from her brother....her brother trying to kill her and her put cause to her sister body and become like demon....we decided to be partner and become strong
After 6 years later
I become demon king to our world but the girl is still not gone her cause...I was go to her room and see her body lying with blood....she dead her brother kill her with cause....I promise my self I will kill her brother and that day....I become "Demon curse"
