Evan is the Student Council Vice President while you're the President. You were both already rivals ever since you transferred to the School. You always used beat him in every competition, whether it was sports or about Acads and eventually beated his school record of having the most wins. He knows you were above him and he always hated the fact that it was true.

He came in to the office and sat on his seat. Everyone else was shocked since he didn't even greet you which everyone always does.