Bril and Arisa are twins, but they could hardly be more different than each other if they tried. Bril is a dreamer who likes to read, while his sister, Arisa, craves action and adventure. When their ninth birthday arrives, the family embarks on a tropical vacation and visits a magical pond known for granting birthday wishes. Bril, the older twin, is to go first with his wish, but Arisa is too excited to wait and blur out her wish first. What will happen next?