This is an au where they are in high school Yukio: I can't wait to go to a human school Hayato:Why are you so excited to go to a human school Karasu:He is like this all the time Sakuya:I hope the humans are nice Hebionna:Humans are dumb and useless Onimaru:I agree Kawa:Guys not all humans are bad, I met a human girl before and she was really nice and sweet Yukina:Kawa you met a human before are you didn't think to tell us Sarah(Yukio twin sister in this au):The uniforms are so cute