Ep. 28: The girls visit the beach where Towa hides her inability to swim from her friends.

At the beach, Towa avoids swimming because she cannot do it, while Yui expresses envy over Towa's helpfulness yet values their togetherness. Lock targets Yui to create a Sketchbook Zetsuborg aimed at Towa, sending clones to attack the other Cures. Recognizing the significance of their bond, Towa defeats the Zetsuborg and saves Yui, whose notebook yields a new Dress-Up Key called the Sun Key. That night, Haruka and the others are shocked to find that Lock stole all their Dress-up Keys during the battle.

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