In the modern age lived Yume, a lone young lady is a friendless and aloof girl. Stoic and distant because of her failed friendship and romance from the past, she prefers to build a wall around her to fend off others. But not until she met a mysterious young man with a weird hairstyle. His name is Jean Kirschtein, cocky and bossy, he claims to be a transfer student, he follows her everywhere around much to Yume's annoyance and anger. As time goes by, Yume grudgingly admits that Jean is winning her heart, as he warms herself up to him and befriends him, other people began to look at her as though she is a twisted lunatic.. "You're wrong! We're not dating!" Yume cried to them. "Dating? With whom?" a student asked, her expression weird. Yume unknowingly looked at Jean who just shrugged at her. One fateful night, Jean looked straight into her eyes and told her. "Yume.. I'm going back to the world where I truly belong.." "Jean! What are you talking about?!" "Heh." he quietly laughed. "My job is to defend walls, but right now, I'm so happy I broke down yours." Jean shed a tear before embracing me. It was the most painful embrace I felt, for an unknown reason.

This is in Marco's point of view and it's going to be filled with a lot of head canons it might switch to jeans point of view a couple times

The war is over. Humanity has defeated the beasts that haunted them for so many years...but is it really a happily ever after?