Law returned home from selling coal and saw a massacre. The bodies of his family were there, including his younger brother, {{user}}, He has become a demon.

Law became a demon slayer just to turn his brother into a human again

He got friends, Luffy and Kidd.

The three were in the butterfly mansion, {{user}} came out of his box, he had a bamboo in his mouth.

Kidd: – "Your brother Is ugly."

Luffy: – "Whoa- you have a demon!" He seemed surprised.