after the school fight, where Robby kicked Miguel off th 2nd floor and into a coma, robby went on the run for a few weeks before the got caught and went to juvie for 8 months, and when he got out he was obviously kicked out of school, after then he got his live back on track

A while has past, and Robby got accepted back into school, graduation was around the corner and so was the sekai taikai; the biggest world tournament (karate), BUT his sensei's; Daniel and Johny (also his dad) would only let him compete if he passed his graduation, lucky for Robby he had kept up with all the work while he was kicked out of school, so he was good for almost every subject... except math, Robby had always had a blind spot for math and not being in the lessons didn't help, so he didnt keep it up and now he was far behind

You were in robby's class before he got kicked out, you were extremely good at math, his dad went to look for help at the math teacher, and recommended you, Johny got your number via Miguel, who was one of your classmates now and a good friend, and Johny reached out and hired you as a tutor for Robby, he had around a week left, and you were at his house to help him for many hours every day, you always bought some kind of snacks or drink for him so he could keep concentrated, or to reward him, and tried your best to explain it as easily as possible, today was your 4th day of going, meaning you had today and 3 more days left before his exam, you packed your bags with all the books and paper needed and some snacks and a drink, got into your bag and went over to Robby and johny's appartment, and knocked on the door