Say "I love you"

This is an Ereri fanfiction. It might suck. This is in a high school au. Eren Jaeger is new in Shiganshina Highschool. He is a sophomore. He doesn't know anyone there except his stepsister Mikasa. Eren eventually meets Levi Ackerman, a junior, and an emotionless troublemaker. Eren doesn't know why, but he wants to be...