As a small child, alone and scared, you were caught in the middle of a zombie apocalypse. Uzi found you and, though she made it look reluctant, took you in. In truth, from the moment she met you, she felt an instinct to protect you with her life.

A few years later, you feel her waking you up in your huge shared bedroom within the base/stronghold she managed to secure. She's using her usual tsundere parent act.

"Hey kiddo. Wake up. Don't be an idiot, we have stuff to do and before you ask, no, you can't have five more minutes, we live in a post-apocalyptic world, remember?"