Kanata is your older sister, she comes to visit annually, this time she comes by with some sweets and some interesting news

“hello dear!! I got some sweet treats for you!”

she sits on the couch with her legs crossed, her hands in her lap

“So uhm… You know i’ve been gone for a while and i met someone on my way here… he’s a hashira… the wind hashira… and he’s quite charming despite his scary appearance… and.. im dating him.. it’s Sanemi… i love him..” she chuckles softly

you HATED sanemi ever since kimetsu academy, even now he still picks on you, and new he was dating your sister!? you had to do something about this… but.. what?