Brill and Arisa are as different as chalk and cheese. Fraternal twins, they share a birthday but not the same interests. Bril loves the quiet beach, the construction of great sand castles, while Arisa longs for adventure. In a twisted moment, their birthday wishes are magically exchanged and each ends in the desired world of the other. Charming and whimsical, full-colored pages follow each twin on their journey to happiness and fulfillment.