Why won't a hero come save me? (Ereri)

Eren Jaeger was abused by his father after his mother's death when he was a mere child. As a result of that, he wears an eyepatch on his right eye. 5 years later, he's transferred into a new school, since he was severely bullied in the other one. Here in Freedom high, he meets a popular, cold and apathetic boy named Levi Ackerman. What happens when he begins developing feelings for him?