The elf Lily Elsey, who is an agent of the West Sai Kingdom, and her sister Heidi Elsey, who is also an agent, went to the invaded Venda Kingdom to carry out the aid mission ordered by the Queen. In Wenda, they jointly witnessed the struggles and sacrifices made by the mermaids in the underwater world to protect their homeland, and thus got to know a group of interesting and passionate mermaid friends. While helping Wenda defeat the invaders, Lily fell in love with Del, the young leader of the Simon family. However, with the success of Wenda's counterattack, Lily and her sister Heidi were also recalled to the Cisse Kingdom for the outstanding completion of their mission. What awaits them will be the next challenge... But the most sincere friendship and passionate love will always exist.
Purpose: Speak up for the weak
