Although she should be happy about its effect on the family micro-economy, the diurnal heat and a mob of impatient customers drives Natsume batty as she tries to entreat Tetsuo to take the family on a seashore vacation citing the effect it is having on Yuu who daydreams about swimming in the ocean before Nega snaps her back to reality as he and Posi prosecute an analytical concourse over the logistics and consequences of Yuu taking a vacation from her double life as Creamy Mami -- an incidence of which is that day when she has it explained that she is to conduct a joint concert alongside Megumi as Creamy Mami at Isohama complete with a brand-new high-tech mobile production van; later that evening, Yuu throws a temper tantrum in an attempt to defeat her earlier »gung-ho« exhibition about working while pointing out that Natsume was trying the same thing earlier only to have the annoyed Tetsuo affirm some very decisive family government. The road trip to Isohama the next morning becomes the forum for Yuu to ultimately learn the lesson »Be very careful what you wish for« when Natsume engages Shingo in a dangerous road race en route to the beach; if that is not enough along with the hefty workload of preparing crepes alongside Toshio and Midori without Natsume and Tetsuo to lead them through it, Yuu finds that doing her thing as Creamy Mami takes on a whole new dimension when she has to perform the joint concert not with Megumi but with her magical alter ego.

Yuu recounting a conversation with her father Tetsuo about the stars in the sky and the fable associated with the decennial Dream Comet gives way to a news broadcast about the Dream Comet as Yuu finishes making a crepe for Midori that sets the stage for Yuu to prosecute a divergent concourse regarding the existence of Mr. Dream with Toshio who plans to observe the Comet that night with Midori. Later that evening while staring up at the sky, Yuu explains her childhood prologue with Toshio whose detection of the Dream Comet becomes the forum for Mr. Dream to manifest himself before the astonished Yuu as he explains the adventure ahead of her that night. Yuu's adventure with Mr. Dream begins with some elements of »Alice in Wonderland« that enable Toshio to spot Yuu well enough to give chase after her; while unable to follow Yuu to the dimensional area where the secret clubhouse is located, Toshio's anxiety for Yuu's welfare is a potent deus ex machina that ultimately adds enough elements of »Cinderella« to bring the evening excursion to a conclusion that leaves Yuu feeling satisfied with a healthy perspective of the circumstances; even if the complex logistics of reality do not always work out in her favor, Mr. Dream leaves behind a wonderful consolation prize for Yuu: a Toshio that happily accommodates her childish dreams.

An excited Shingo racing in with the news of successfully arranging the Hong Kong locale of Creamy Mami's first anniversary concert on July 1 becomes the forum for Yuu having it explained that the arithmetic is simply not in her favor; in spite of this, Yuu decides to go through with the concert after having Shingo reschedule it in Japan much to the shock of the two cats as she goes to dinner -- a task far more easily contemplated than conducted even for Megumi who senses something off with Mami that evening; a maternal reminder about the school bag later, Natsume also senses something amiss with Yuu who seeks comfort from Toshio's aid of her school commute oblivious to the fact that somebody has already made the choice for Creamy Mami's retirement. Suspecting that the public relations media circus is Snake Joe's subterfuge, Shingo confronts him only to find that Snake Joe has decided to turn over a new leaf with Kumiko -- a penance that prompts Snake Joe into one last investigation. Creamy Mami's »kidnapping« during her home commute has the ironic silver lining of ultimately accomplishing for her what she herself could not -- a June 29 concert at the Central Horse Racing Club.