Alaina, Cassie, and Miya aren't blood sisters but soul sisters. Even though Alaina is a bit of the odd-ball of the group only wanting friends. All girls have been together since they were tots. Cassie is the leader of The Sisterhood and never leaves her sisters. #IslandLiving #sisters #mermaids Watch the video here --> https://youtu.be/VsH-xTNCi7k Each girl has a specific story to their personalties!