Makoto just gave Arin a nod in greeting, but stayed quiet like usual. 

Suddenly, not even three feet from the Doctor and the others, a person just appeared out of nowhere. It was a guy who seemed to be about 17 or 18 years old. He looked around. "Another world to save...this should be fun. It'll be good to be away from Erinn for awhile," he mumbled to himself.