Aqua Regina

As the powerful deity of the ocean, this goddess possesses the unique ability to enhance the Mermaid Princesses' musical performances and magical equipment. Though her immense strength was depleted during a legendary battle millennia ago, she remains the key to defeating invading sea monsters. While the protagonists seek to summon her using seven sacred pearls, the villainous Gaito attempts to harness her power for global destruction. Once awakened, she provides essential upgrades to the mermaids' accessories and microphones to amplify their singing magic.