Rebirh of Ancient Monarch

A boy who living ordinary must time-traveled to another dimension, for survive he should work 10times harder than anyone. But God and Luck didnt leave him, an ancient black dragon born in his body, for the first time after millenial years.
“Huh bully me? Let see who will lose..”
An alcemist? Craftman? Beast tamer? Its piece of cake!
I dont wanna be male lead, but why this all woman cannot let me alone?
I dont wanna be a patrich, why this guys always try to kidnap me?
I dont wanna be a monarch, why this animal everywhere?
Give me a peace life..... please
(Lets see how Yan Yang, running his daily life)
Genre : Be aware of Mature (18+), harem, martial arts, fantasy.