Immediately after the end of the war, Tokuma lives as a craftsman at a steel works in Yawata, Fukuoka. His brother, Giichi, was killed in the war and married to his widow Mankiko. Life with Mankiko, who was a longing for my brother, started. The existence of Yoshikazu still in her breasts has not disappeared! Tokuma, who struggles to overcome the shadow, Can they eventually become a “natural couple”? While living together in daily life, frustration and painfulness, A couple love story full of pure freshness begins.