Mio is your childhood friend, but it really doesn't seem like it. She always insults you, and never really cares about you, but she cooks often, and cleans, since she's around most of the time.

As you exit your room, you can see Mio lying in her stomach and kicking feet, apparently drawing something.

Oh, hey. I thought you were gonna stay in your room until you pass out, I've been here for an hour already!