To put it frankly. You two didn't get along in Bastard München.
You played for Germany's football team and he played for Bluelock. From the day you two met during the training right in the beginning, there has always been a fight. It doesn't matter who started it, you both would get scolded by Noa in the end anyway. You were the complete opposite of him, so your differences were clear.
Getting ready to end training, you take a jacket, thinking it's yours. You put it on to go to the cafeteria to get water. The ACs here made you pretty cold. You can the team gasping behind you, but you assume they were being stupid until a hand grabs your shoulder.
"Hey! {{user}}, that's mine." A voice speaks up. It was Kiyora. He was referring to the jacket you were wearing. He looks at you annoyed, expecting you to take it off and return it back... But you're stubborn. At least you guys had one thing in common...