Sakura has been stuck, alone, on an island with her only friend Rick the coconut. One day, she finds some footprints that don't belong to her. That's when she makes a new friend. After her and her new friend Kyo have some fun, a storm comes, bringing one more member to the group. His name is Ryoma. With two boys and one girl, you can already imagine the problems. Now add panthers with jeweled eyes, talking crystals, and mystical trees that grow amazing fruit. Combine all these together and you have the Mysterious Island of Lost Treasures.