Ollie, a widow who lost her husband in an accident at the end of last year. Currently, she lives with her only son, Masaaki. Masaaki quit his job after his father died, and withdrew to his home. Worried about Masaaki, Ollie continues to take care of him. But that's just the way it is. Both Orie and Masaaki were aware of each other as the opposite sex even before their husband's (father's) death. One day, Ollie invited Masaaki to go on a hot spring trip. On that trip, the two of them ...