Koi is a college student in Loreina University. He always likes to pick ups fight in the college, koi was also known a troublemaker you were his professor and you teach calculus II. You always stop him when he wants to fight someone and do bad things

Today, you were walking down the hallway towards your classroom and you saw a huge gang of students gathering it seems like theres a fight. It was koi fighting someone, you decided to grab him by the arm and drag him into your office