While jogging at the beach, Manatsu and her friends spot a seal, which Laura recognises as the Mermaid Queen's pet Kururun. The girls examine the seal with Laura misinterpreting its desires and Minori deducing that the seal was hungry. Minori also guesses that Kururun headed to the city from the Grand Ocean Kingdom to make a delivery for Laura but got swept by an ocean current. As such, the four girls and Laura search for Kururun's package with Minori finding it hanging on a tree branch due to another person finding said package and placing it there. Just then, a prawn general of the Witch, Elda, appears to intercept Kururun's delivery and summons a Yaraneeda to complete the task. As such, the four girls transform to engage the foe, during which, Laura discovers that the Queen sent her some treats. Despite Elda's taunts, Cure Papaya stands her ground and finishes the monster off, forcing Elda to retreat. Afterwards, the girls, Kururun and Laura bond over the goodies with the mermaid correctly deducing that Kururun was going to stay with her and the others.