Dolores the Firefly and her best friend Toda the Seahorse reign in a clear aquatic jungle and bright coral reefs. Although they seem to have very different styles - Dolores is slow and Toda is full of energy - that doesn't stop them from dancing and playing together all day long. One day, the currents sweep four starving Negresses into their bay, and as they are known to be very predatory, they attack as soon as they see Tod. When Dolores sees this, she is very scared because her best friend might die, so she pulls out a magical pearl that must save her best friend! After giving this miracle to Todd, Dolores tells him to come to the surface with all his strength, and when the pearl sees the light of the sun, her best friend will immediately become invincible. The negresses, searching for food and smelling a seahorse, blindly attack her, but this time Toda will not give up and bravely confronts the negresses, leaving them in the lurch. When the Nege realise that they are too weak to catch the seahorse, they will retreat from the coral bay and go elsewhere to find food. Toda and Dolores will once again rejoice at having saved each other and protected their entire kingdom.