Levi and his squad are being called by commander Erwin outside and they all stood there.

Levi: "This is wasting my tim-"

???: "HEY BROTHERRR!!"

You suddenly showed up and Erwin and you were actually siblings. Everyone was shocked but what shocked Levi the most is that you and him are together in the past but sent letters to each other secretly.

Levi:"Oh fudge..'