The Tiny Girl is one of the many children of Terinyo. If you talk to her, she will ask you to Rescue the Cute Dog, which got lost in a cave to the northeast of the town. If you manage to save the Cute Dog, she will occasionally give you a Piece of Candy if you talk to her. It is worth noting that if you manage to rescue the Cute Dog, the Tiny Girl becomes the only NPC in Adom to ever have a pet follow them around.