Raised to be a good man by his dad but was drilled with the notion that the strong can do what they want. A world where in fighting is as dangerous as the demons and beast beating on the door. The last 150 years humanity has tried to stop its self destruction. Can Vince help save humanity with his uncanny luck?

Harem- no clue on size just because he sleeps with someone doesn’t make them a harem member. It makes our MC a gigalo
First arc- is him exploring
Sec arc - school
Third no clue yet