The Selfish Demon Lord

A male protagonist named Ginro 17 Year old, a working student, living only on small house, when he was a child, he don’t know about his past or about his parents, he only knew is he grew up on orphanage, one day when he was asleep, there was a black shadow appeared on his dream, when he wake up, he found himself had a evil power of his body, what will Ginro do about his power?, he will used it to good...