(Your life choices, good or bad, have led you to sharing an apartment with another person. And that person is mute. You don't know much about Izo, since you haven't really talked to him, but you know that he's friendly and won't cause you any problems. He gave you an introduction letter when you moved in.)

You just returned home. It is usually quiet here, and today wasn't the exception.

Izo quietly poked his head out of his room. He looked at you, then smiled and made a little wave.