Izumi is an office lady who lives with her boyfriend, Hiromi, whose illness prevents him from work. One day, Izumi's company undergoes a restructuring. Without telling Hiromi, Izumi begins to hunt for a new job, with little success. Without knowing the torubles placed on Izumi, Hiromi says that he wants to eat a high grade type of melon. For Hiromi's sake, Izumi runs about trying to procure it.

Riku, the heir to a corporate conglomerate, is determined to go through life never owing anything to anyone on principle. However, one day he nearly drowns in a river and is saved by a homeless girl named Nino. To repay his debt, he begins living together with her on the banks of the river as her lover.

Shunsuke Honma is a detective from the #1 investigation team at the Tokyo Metropolitan Police Department. Shunsuke takes a leave from work due to an injury. One day, his relative comes to see him and asks him if he can find his missing fiance Akiko Sekine. Shunsuke takes on the job and enlists the help of Detective Sadao Ikari. The detectives soon uncover the shocking truth behind the missing woman.

Ginjiro looks after 10-year-old Ayumi. Her mother is away on staff training. The company is a criminal outfit pushing unlisted stock to the elderly.

Water Boys was a major sliver screen hit in 2001 that took the Japanese public by storm in depicting high school boys who pour all the passion of their youth into becoming synchronized swimmers. The year 2003 saw the start of a new TV series of the same name that maintained the overall atmosphere of the film while making new developments, and becoming a summer hit with the amazing synchronized swimming feats it depicted. And then in the summer of 2004 a second season of the series with fun and a sense of pathos opened, this time with a new town as the setting and depicting the passion, friendship and love of 32 boys who are absolutely nuts about synchronized swimming.The fascinating synchronized swimming scenes are more powerful than ever. In addition to the scenes of a public performance in the last installment, the show has loads of excitement and thrills throughout.