1. The Child At Headquarters.

"You donʼt know how that kid looks at me, Ral." Levi pulled at the roots of his raven hair.

Petraʼs voice was almost a whisper as she walked over to him and hesitantly reached for the two fingers resting on his forehead.

"Like a father?"

-

in which, Levi Ackerman and Petra Ral become unofficial parents to little Eren who shows up at headquarters all of a sudden.

A little seven year old boy just might be the key to unlock old memories and bring them closer.