Haruka was shocked to hear that Kanata thinks she shouldn't become a princess and shuts herself away from everyone; at that same time, Close has made it so the town of Yumegahama is about to be swallowed by a forest of evil thorns.

Kirara refuses to join the Pretty Cures even though she has transformed into Cure Twinkle; Haruka, who wants Kirara to join the Pretty Cures, goes to where Kirara works as a model after school.

The Noble Party, a formal dinner party in which everyone will participate in full dress, is coming up soon; Haruka challenges herself to make a party dress for the event; Haruka takes a lesson with the Princess Lesson Pad.

The Noble Party Haruka has been waiting for finally starts; however, the lights in the hall suddenly go out; Minami, the student council president, heads to the warehouse where the switchboard is to find out why.

The Dress-Up Key is said to be in a "place filled with dreams" at the Noble Academy; Haruka thinks that the school's dormitory mother Shirogane might know something.

Using her power, the witch Dyspear blows the three Pretty Cures, Aroma, Pafu and Yui, to the Cage of Despair, which she created.