Unlimited Skill Points System - Chapter 34

Fu Qian gracefully removed his skull, as if a gentleman were taking off his hat to pay respects.…Everything began with a transcended-dimension invitation.It’s a story of a high-quality Thug turning the impossible into the possible.Of course, on that day, the great being behind the invitation was still unaware of what it had done.

Beings that create and control monsters and demons, beings that build and reign over malicious labyrinths, the chosen individuals to possess an overwhelming Unique Skill… They are the Demon Lords.

Crossing to One Piece world, he became Roger’s younger brother.

What got summoned was the world’s strongest sociopath.