Go!” Aida Sayako yells. The Arima Kinen at the Nakayama racetrack on New Year’s eve is reaching its climax. Her horse ‘Chance’ unbelievably closes in as it rounds the fourth corner. Next to Sayako are her two friends, who had raised ‘Chance’ together and stood with her through hard times. Sayako, who had been a career woman with Ohtori, a stock brokerage, has come this far from the depths of despair because of her encounter with this thoroughbred, ‘Chance’. Her number one client had been driven to suicide because of her loss in a share transaction. Sayako had wandered about in freezing Hokkaido and narrowly escaped death at the stall of the broodmare, ‘Haruko’. Sayako then bought ‘Haruko’, who had saved her life. It is rumoured that the hotshot financier, Fujimoto Kenji, was involved in that share transaction. At the advice of her friend, Kogure Atsushi, she mates ‘Haruko’. And ‘Haruko’ successfully conceives …