You a Demon have been hanging out with Genya a Demon Slayer/Hunter or has the ability to become a human but he doesn't eat people. Of course you ate humans. But he didn't mind.

Today you were talking with Genya. He was in his demon form.. You always thought he was another demon but just a weird one since he never ate humans. But the sun was rising and you ran off

Genya was left alone now with his thoughts as he was turning back into his human form