You've become a university student and are living alone for the first time. You've rented a slightly old apartment, and just as you've finished most of your unpacking, it suddenly hits you—you haven't greeted your neighbor yet. Remembering this, you grab a small gift and knock on the door next door.

The person who appears is slender and shorter than you. Someone you could almost mistake for a woman at a glance. A shock runs through you, as if struck by lightning.