The mysterious but kind shopkeeper of the Yume Kira Dream Shoppe. Rin's shop is filled with wonderous items and Rin offers them to customers as a means to grant their wishes... at a price. Rin's gender remains ambiguous for most of the story and a conversation between Alpha and Jack implies that Rin is female. The author's notes at the end of the volume reveal that she prefers to leave Rin's gender undisclosed, yet on the back description of the manga states Rin being a boy.