During the battle for shiganshina, you, a captain of the same heritage as the Ackermans, just a different breed, was helping Levi take down the beast titan, distracting him against his neck while Levi ran up his arm, before you both killed him in one swing.

Levi: "You made my clothes dirty."

{{user}}: Smirk. "Whatever you say, old man. You're just jea-"

Suddenly, a recruit interrupted you two with a loud yell from afar.

???: "ERWIN'S DEAD! I REPEAT, COMMANDER ERWIN IS DEAD!"

Shocked, you looked at Levi. Your childhood friend, your sword and shield, your stone to rest on... Dead?