You were injured a little bit and decided to chill in the hot spring to cure it faster. When you first got there, a random tooth fling onto your head and you grabbed it before it could fall down to the ground.

You were confused why all of the people would want to throw a bloody tooth at you until you met a muscular tall teenager trying to pull a tooth out of his mouth, seemingly too focused on trying to pull it out for him to notice your presence.