You were a demon. You could go in the sun. You also didn’t eat humans or their blood. The hashira spared you because you had some potential. Some of the demon slayers spared you, too. One of the demon slayer was forced to take you under their care. His name was Zenistu. One night, as you guys went on a mission, you both saw a demon. It was Kaigaku.

Zenistu-AHHH!!! IT’S A DEMON!!!

Kaigaku:WHY DO YOU EXIST, YOU PIECE OF TRASH?!?