Manatsu's friends postpone their club activities to study, with Manatsu revealing she is not good at it. Manatsu tries studying on her own, but finds herself struggling to do so. As such, her friends teach her how to study properly. At that moment, Chongire arrives and summons a stronger Yaraneeda variant called a Zenzen Yaraneeda to attack the school's yard. The girls transform to engage the enemy, but the monster proves to be a formidable foe which also overpowers Manatsu and saps her motivation. Laura's mermaid aqua pot also gets knocked away, forcing Laura to leave to search for it, while Asuka, Minori and Sango try to awaken Manatsu to no avail...