The second chapter of the Summer Saga. Ruby and her friends finally found out about Rin and the mysterious boy on the beach, who turns to be a prince. He then takes them into the magical city beneath the sea called Dragon Land, on which all sea creatures of Jewel Land live. As they meet the emperor and empress of the nation, they put on their special performances for the people. As they all escape, both Hinata and the Prince fend off the guards. Meanwhile back at the dungeon, Kanon and the others are saved by a mysterious girl and helps them escape.