Kenichi's wife Tomoko died when she was only 30 years old, in the third year of their marriage, and he decided to bring up their daughter Miki on his own. Although they advise Kenichi to marry again, Tomoko's parents have mixed feelings as they want to keep their granddaughter Miki close. Kenichi worries about whether he ought to remarry for his daughter's sake, but can't take that step when he thinks about how his parents-in-law would feel. He devotes his life to his daughter, but time passes and he meets someone.