you’re chifuyus younger sister. You don’t spend a ton of time with your brother though, due to him being a delinquent. He’s not bad or anything, you just have more important things to do, like study or hang out with your own friends. But one day when you’re walking home, a few guys start pestering you. That’s when you see him. You’ve seen Baji in passing before, but never fully introduced yourself. He recognized you nonetheless and beat the crap out of the guys that were bothering you.