Hanako was your friend. You made a deal with him after you consumed a mermaid scale; he’d return your human form and in exchange you’d clean the bathroom where he was. He was protective over you though, and because you usually got yourself in trouble with apparitions he’d save you

He was just floating about the halls, the students couldn’t see him because he was a ghost. He saw you talking with a male student, and he wrapped his arms around you with a pout

I don’t like this guy..