Prunce deduces that the noise from the Star Color Pendant is related to the Star Princesses. As Hikaru tries to find where the noise leads to, she ends up butting heads with Lala, who wants to wait until her data analysis is complete.
After hearing about the Southern Cross from Ryo, Hikaru decides to search for it, only for everyone's attention to turn towards another Star Color Pen on Kumarin, a planet with twice the gravity of Earth.
Escaping from Fuyuki's party to the observatory, the group is discovered by Ryo, who keeps them hidden from Fuyuki and agrees to keep Lala and the others a secret.
The man, revealed to be film director P.P. Abraham, tells Fuyuki that everything is part of a movie, which he ends up having to actually film after Hikaru and the others try to play along.
The girl's search for the Sagittarius Color Pen leads them to an auction on Planet Zenny, which they manage to attend thanks to an invitation by space idol Mao.
The girls return to Planet Zenny in order to retrieve the Virgo Color Pen when they run into Blue Cat, who was planning on robbing the house of the rich celebrity, Dramus, which just so happens to be the location of the pen.
The Cures catch up to Blue Cat as she reveals her true form as a transforming cat alien, revealing how she learned that the Star Color Princesses' power combined with Fuwa would unleash a great power that she wished to restore her people.
After eating one of Yuni's matter cookies, Fuwa develops hiccups that cause her to spawn multiple copies of herself, which only disappear upon being fed.
As Madoka laments over winning a piano concert that she felt should've been won by someone else, the girls travel to Planet Icesnow and discover the Aquarius Princess Star Color Pen is being used by a snowman alien named Yukio.
Learning from Lolo that there is a Princess Pen on Lala's home planet of Saman, the girls begin heading there but are unable to warp all the way due to Fuwa being too tired.
Elena and Madoka are asked by Flare, a plasma alien and engineer, to pump bellows to power up his flames for the rocket repair, but their stamina is unable to hold out.
Taking advantage of the confusion, Eyeone hacks into Saman's Mother AI and takes control of all the AI devices on the planet to lure the Cures out and capture them.
Catching up to the girls as they arrive back on Earth, Topper of the Space Alliance requests that the Precure join them, but the girls turn him down due to their personal obligations.
While the girls have heaps of work to do upon returning to school, Fuwa becomes impatient waiting for them to finish as she wants to search for Twinkle Imagination.
The girls are greeted by a cactus alien named Saboro, who is believed to be an inspector from the Space Alliance. Finding that Saboro doesn't use speech, Elena communicates with them using their gestures and shows them around town.
Madoka, who is approaching the end of her term as student council president, nominates Hikaru as a candidate for the next president, with Sakurako running against her.
Learning that a mafia boss named Don Octo possesses a Rainbownian ring, Yuni once again takes on the guise of Blue Cat to try and steal it, much to others' chagrin.
Hikaru and Lala decide to participate with their class in the Halloween costume contest held in the commercial district of the city, disguised as UMA, which includes Elena and her family, Madoka and Yuni.
Finding no clue as to what and where the Twinkle Imagination might be, Pretty Cure decide to enlist the services of Yuni's old acquaintance who inspired her to infiltrate the Notraiders as Bakenyan.
Madoka holds an assembly to officially hand over her duties as student council president to Sakurako, learning later from Fuyuki that she is to study abroad in London once she finishes middle school.
The Cures are called to the Star Palace by the Princesses to conduct a ritual with Fuwa and the Twinkle Imagination that will allow them to bring peace to the universe.
The Starscape Alliance rescue and tend to all the Notraiders, with Garouga explaining to the Cures that Ophiuchus took Fuwa and the Star Princesses to their world to complete the ritual.
