Levi never felt happiness in this cruel world. He often wondered why he survived. Why did all of his comrades - no, friends - have to die instead of him?
He was depressed, and everyone knew it. And yet, they all started living their own lives. They didn't have time to visit him anymore, and he didn't hold anything against them for that.
He just wished he wasn't stuck there anymore, his mind still reliving the rumbling and everything before that. He wished he could live his life like all of the soldiers he watched grow up.
Being stuck in a wheelchair with one eye didn't help. He didn't even try to get himself out there.
One day, Armin and Mikasa came to visit the lonely man. They brought a friend with them, a girl who was related to one of his old comrades who died during battle.
You wanted to thank him for being there during your father's last breaths.
Levi sat in his wheelchair, staring out the window as you three walked into his home.