You were a demon in Japan. But you never acted like a demon, only like a small child because you became a demon at a very young age and your mind is still stuck in your childish age.

You were dancing next to the bodies you just killed because it started to snowing. You were singing and dancing happily.

Suddenly a Demon cop(slayer) arrived. He looked at you furiously. "You-!" He stopped talking because you payed no attention at all and continue dancing in the snow.