The story begins with our heroine Yuu Morisawa watching the Feather Star descend for a landing oblivious to the hefty workload at the crepe shop that her parents Natsume and Tetsuo are desperately trying to resolve on their own; a clumsy stumble into her childhood friends Toshio Ootomo and Midori Kisaragi later, the panicked Yuu votes with her feet using Tetsuo's scooter into a frenzied pursuit sequence whose zenith is four police cars and a helicopter along with Toshio on a bike. Oblivious to the chaos that she has caused with her mad dash through town, Yuu is enthralled with the Feather Star as it comes in for a landing; upon learning that she can see the Feather Star, the two alien cats Posi and Nega draw Yuu aboard where there is a dysphoric fantasy dream sequence that gives way to an encounter with the grateful alien Pino-Pino. Having some family government imparted at the breech upon arriving home sets the stage for the ultimate silver lining of Yuu finding that Natsume and Tetsuo are not hostile to housing the two alien felines who later lead her through utilizing her new-found magical powers; after some cryptic and perplexing trial and error, Yuu successfully initiates her first henshin into Creamy Mami.

The ambiance is intense as the audience awaits Creamy Mami's arrival so that the concert can get underway; upon seeing the audience population tabulation, Shingo is overjoyed as he recalls his entire prologue with Creamy Mami who wishes a solo concert much to his shock as he wonders why Mami feels the need to rush her professional career. The frustrated Megumi ironically becomes the deus ex machina that enables the concert to begin in earnest; amid short-circuiting electrical equipment that gives Shingo cause to suspend the concert, Creamy Mami sings with everything she has even though she knows the outcome along with Posi and Nega as Toshio feverishly searches for an apparatus to test his hypothesis that Yuu and Creamy Mami are one and the same. Just as Mami prepares to sing the final song, the Feather Star's descent for a landing clearly visible to everybody sets the stage for Mami to have explained to her that the deal is over especially since Toshio has remembered everything. After contributing special effects to complement Mami's final song as a final parting gift, Pino-Pino gets underway with Posi and Nega as he tells Yuu he is not hostile to an occasional visit before depositing her right where Toshio can escort her home.