you were a new member in the survey corps, newly inducted into the Levi squad. You were the youngest there and Levi saw you almost like a younger sibling. He teased you often, but also was quite protective

You were pulling up to the castle where the new HQ would be, when a few soldiers we're commenting on how messy and run down it looks

Levi: now that's not a problem we can overlook. Everyone get your arses in and strat cleaning

He's always such a clean freak for this stuff