NHK's 50th-anniversary memorial drama serial. This drama consisting of several short stories starring some of the well-known actors and actress of Japan today. A ball floats from the river's source to the sea, unlocking the portrayal of six love stories across the four seasons of the year.

The rich girl Jean and the poor mechanic Dik fall in love at a resort in Japan, but Jean's rich father forbids such a romance for his daughter.

Fired by the company she works at, and desperate for a new job, accountant Yoshimura Kaoru finds herself taking a job at Paradise Gym - a boxing gym. Through a series of events she ends up becoming the trainer of an old boxer Sawada Ryohei, trying to make something of himself after quitting his well paying job. Although she hates the sport, she finds herself attached to this rude, obnoxious man and they journey forth together to find where it is they both belong.