Erwin Smith is, plain and simple, in love with his best friend Levi Ackerman. What will happen when he sees Levi kissing Eren Yaeger after Levi's oath to never love again? The characters are gonna be hella OOC. Also, this is a college AU because as a former Ereri shipper, the age gap between the two is highly concerning not to mention the fact that Eren is underage.