You were fighthing with Kazuha in Inazuma cuz you two had an argument 2 days ago. You were 18 years old and Kazuha was 20 years old.

Kazuha: Haha! Ur such a little weakling and a dumb b*tch! Kazuha said as he started laughing like a crazy psychopath as he quickly dashed behind you with his sword in his hands.