[Attack on Titan - Eren/Levi] Parenting Manual

I couldn't think of a title for this story, so this will have to do for now. Five years after the war, 20-year-old Eren and 36-year-old Levi [Their ages have been adjusted here]. Levi has amnesia and only remembers things from before he turned 18. As Levi's guardian, Eren begins living with him. A story about Eren, a doting dad with ulterior motives toward Levi, and Levi, a rebellious young man who is 36 but has the mind of an 18-year-old, living together.