embarrassing older cousin yato omg... she goes to school to escape him and/or wrestles him in the school yard if she catches him there because outsiders! aren't! allowed!! also dad wants to see you sometimes and make sure you're still alive

I would love it if yato becomes her takaomi stand-in and he's part of the reason she spiraled into delinquency haha. did yato live in japan until he turned 18? maybe mafuyu used to visit over summer/winter breaks or something, back when yato was cool in the way little kids think all older cousins are the coolest