In Japan, a young girl nicknamed Gorgeous (Kimiko Ikegami), so called for her beauty, has plans for a summer vacation with her father (Saho Sasazawa) who had been in Italy scoring film music. Her father returns home and surprises Gorgeous by announcing she has a new stepmother, Ryoko Ema (Haruko Wanibuchi). This upsets Gorgeous as her mother had died eight years earlier. Gorgeous goes to her bedroom and writes a letter to her aunt asking if she could come visit her this summer instead. Gorgeous' aunt replies and allows her to come visit. Gorgeous invites her six friends, Prof (Ai Matsubara) who is highly academic and is very good at problem solving, Melody (Eriko Tanaka) who has an affinity for music, Kung Fu (Miki Jinbo) who is very athletic and is especially good at kung fu, Mac (Mieko Sato) who is highly gluttonous and loves anything edible, Sweet (Masayo Miyako) who is bubbly and gentle and Fantasy (Kumiko Ohba) who is a constant daydreamer to come along with her. On arriving at the aunt's house, the girls are greeted by Gorgeous' aunt (Yōko Minamida) to whom they present a watermelon.