After losing wife Mina to a sudden accident, Gyujin suffers from memories of his wife that remain throughout the house. Unable to hold back the longing, Gyujin orders an AI robot that eventually replicates his dead wife. However, Gyujin gradually feels the difference between his beloved wife and the robot, and Mina, who does not even know that she is a robot, cannot understand Gyujin pushing her away. Will Gyujin and the robot Mina return to a happy normal life?