The Jaeger and the Yandere(Eremika High School Book)

In Maria Elementary, There were two kids that were childhood friends. Their names were Eren Jaeger and Mikasa Ackerman. They were to go to the same schools and when they got to high school, They would be able to compete against the rivalry school Marley High. Eren was really excited to be in the competitions, but little did he know that mikasa was in love with him in an obsession way. But when eren left on the beginning of Middle School along with Reiner, Berthdolt, Annie and Ymir. She was shocked and heartbroken and her emotions got the better of her. But now, She's at Sina High School and has calmed down. But will her emotions get the better of her again, or will she be able to confess to eren face-to-face?