Mo Siu-sze leads an ordinary married life with her husband Wong Kwok Leung, and is often bullied by her ferocious mother-in-law Wong Chiu-Wing Mui for no reason.

One day, coincidentally, she spots a leaflet from “Cyndi Dance Studio”, evoking her memories of the good old days in high school. In those days she loved writing and organized “MCLUB” together with the others. They included Julie, who was often mocked for her accent, Fung Sin, who is enthusiastic about dancing, nosy Luk Yeun-Chau, precocious Jenny and superstitious Akina, all vowing to stay united and never drift apart. However, more than twenty years have passed, the group disbanded and they went their separate ways and they are no more that young. When dreams and reality collide, the only thing left is nostalgia except for Fung Sin. She continues to pursue her dreams of dancing. Due to an accident, she is hospitalized, leading to a reunion of her bosom buddies. While striving to safeguard the “Cyndi Dance Studio” for their friend, they run into their archrival, campus belle Dandan, whose “D Fitness” turns out to be a formidable foe for the “Cyndi Dance Studio”. With Siu-sze re-encountering her first love Yiu Chi Lun, Julie reflects on the past ranging from ruining their relationship on the sly to giving birth to her daughter as a result of a premarital pregnancy, and all sorts of feelings well up in Julie's heart…… Having gone through all these, their vitality, courage, passion and confidence that seemingly disappeared have just been reignited……