I have to Kill the hero who Regressed 5 times

A young boy who was 15 years old, screamed happily while seeing his appearance in the mirror. He was in a state of extreme joy which caused his face to look like a maniac that will soon start to kill everything around him like crazy.

He was our mc who got regressed to this new world. God suddenly speaks with him and told him that he have to kill the heroes in that world. He was afraid that the one who speak with him is a god or demon and he was also going to fight for himself and his fated person.

Edward our MC was the second son of the blue dragon king. who has a powerful dragon in his collection? but because of his overpowering, every kingdom was afraid of his father. so they used many ways to destroy their kingdom and their kingdom become a small kingdom. Edwards's work was.......to kill the heroes who are summoned to kill the demon king.

AUTHOR: This cover is not mine. Credits go to the real creator.