While the Tropical Club continue their camp, the Witch creates a new orb to summon a new Yaraneeda to which, Butler informs Numeri. The five girls head to Manatsu's secret beach before heading to a senior named Tomi who recalls seeing a forest mermaid, stating that said mermaid allegedly hid the treasure in the island's cave. With that, the girls head off to the cave to find the treasure, only to run into Numeri and get separated from Laura. The remaining girls venture deeper into the cave and encounter Numeri again, who angrily summons a Zettai Yaraneeda...