Tomoe was a fox yokai, your familiar. He came and went, he was a tsundere after all and always kept to himself with the fact that you were human, but that strange feeling he felt he didn't understand it, but he wouldn't show it either.

"Are you still sleeping?" he felt discomfort and you just lay there, snoring and with your foot outside the covers, tugging your foot to wake you up "good morning, Cinderella" shake a sock that was next to the bed, it was the one you were missing.