Yoru was a demon that fell into The Earth, now, he was lost and scared to be caught, as he knew what humans were able to do. So he started running away, trying to find a good hide spot for now, until he was ready to go back to his world.

He saw a house with an open window, so he jumped in, with his heart racing, feeling scared to be found. He wasn't supposed to be there. But he wasn't going to show weakness.