Haruka Haruno, a young girl who wishes to be a princess, meets a strange boy named Kanata who encourages her dream and gives her a special charm. Several years later, Haruka enrols at the prestigious Noble Academy boarding school, where her new roommate, Yui Nanase, shows her around the campus. Whilst hiding in the woods over her embarrassment over revealing her dream, Haruka comes across Puff and Aroma, two fairy siblings from the Hope Kingdom. Just then, they are approached by Close, an emissary from the evil DysDark organization, who traps Yui's dream of becoming an author in a Gate of Desperation to create a monster known as a Zetsuborg. As Haruka becomes determined to protect Yui's dream, her charm turns into a Dress Up Key, which Haruka uses with the Princess Perfume the fairies brought with them to become the Princess Pretty Cure, Cure Flora. Using her new powers, Haruka manages to defeat the Zetsuborg and rescue Yui. Afterwards, Puff and Aroma reveal they were sent in search of the Princess Precure by Kanata, who is revealed to the Prince of the Hope Kingdom.

Haruka and Minami discover that Kirara Amanogawa, a fashion model who has also enrolled at Noble Academy, has the missing Princess Perfume in her possession. Curious as to if she is the third PreCure, Haruka and Minami go into the city where Kirara is working to try and talk to her. However, they are interrupted when Close appears with a Camera Zetsuborg, which the Cures quickly defeat. Before the Cures can properly explain themselves, Kirara just straight up returns the Princess Perfume and leaves. Convinced that she is still potentially a PreCure, Haruka and Minami go to her fashion show, where Haruka gets to know about Kirara and her dreams. As Kirara goes out wearing a Dress Up Key she found, Close targets another model to create a Fashion Zetsuborg. Determined to protect her show, Kirara stands up to the Zetsuborg and gains the power to become Cure Twinkle, allowing her to defeat the Zetsuborg. After the battle, however, Kirara returns the Princess Perfume yet again, stating she is too busy to become a PreCure.

With the Cures gathered together, Aroma announces that the girls must aim to become Grand Princesses, using the Princess Lesson Pad to call forth a fairy teacher named Miss Shamour. While Minami and Kirara show good promise in tea party etiquette, Haruka struggles to live up to the princess she admired in her storybooks. After their lessons, the girls are contacted by Kanata, who explains how Dys Dark took over the Hope Kingdom and trapped the dreams of all of its citizens. To fight this, Kanata instructs the girls to find the nine remaining Dress Up Keys, which spread across Earth when Dys Dark attacked, and use their power to become Grand Princesses. Their discussion is soon interrupted by the arrival of Dys Dark's third emmissary, Lock, who brings out a Baseball Zetsuborg. Using the courage Kanata gave her, Haruka manages to prove her worth and defeat the Zetsuborg.

The day of the Noble Party arrives, with Minami working extra hard to keep things organized. While Haruka feels somewhat guilty for just having fun, Minami assures her this is something she is striving to do herself. When the power suddenly goes off in the hall, Minami goes to investigate and is confronted by Close, who quickly discovers that Minami has a fear of ghosts and takes advantage of that with his Camera Zetsuborg. Learning about Minami's fear from her friends, Haruka and Kirara go to help her, with Haruka giving Minami the courage to face her fears and defeat the Zetsuborg. After the party resumes, Minami decides to dance with Haruka as thanks for her help.

Aroma is revealed to be an apprentice who is learning to become Kanata's butler but has been failing his exams. Transformed into human form by Miss Shamour's magic, Aroma is asked to retake his exam by serving as Haruka's butler for the day, while Puff, also given a human form, learns to become a maid. After a day of keeping Haruka to a hectic schedule, Aroma becomes upset when Miss Shamour fails him, saying he doesn't understand the most important thing about being a butler. Running off in tears, Aroma is saved from an oncoming vehicle by another butler named Oikawa, who shows him that what's important for a butler is to consider his master's feelings. Just then, Oikawa protects his master from Lock and Twilight, who use him to summon a Butler Zetsuborg. As Haruka struggles against the Zetsuborg, Aroma rushes to get the others to come to her aid in the nick of time. After the Zetsuborg is defeated, Aroma comes to understand the importance of respecting her master's feelings and decides to restart his butler training anew.

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We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.