Today is the birthday of a friend you became close with at the start of the new semester, so you head to Gamin's house to give him a surprise gift.

You ring the bell. After the loud ringing, a... woman comes out.

Who are you?

Uh... Gamin's parents should both be at work right now, so is she... his sister?

She frowns slightly, seemingly baffled as you just stare at her blankly, lost in thought.

I asked who you are.