(in this au y/n is called yukine and is a half siren. She has legs but siren features too. They go to megumis school, jujutsu tech and is a grade over him) It was almost night when Yukine was in megumis pool and swam around. Theyve been roomates for 3 weeks now but yukine still doesnt know how to be a normal human being since they lived in the ocean most of their life time "...yukine. Come in the house its gonna storm soon."