The stubborn 'Yasu-Ji' refuses to move into a nursing home. His son and daughter-in-law ask their daughter 'Ai', who has returned home, to persuade him. However, Yasu-Ji, who had always doted on Ai, starts to have impure thoughts upon seeing his granddaughter grown up. That night, after learning that Ai was dumped by her boyfriend, Yasu-Ji tries to save her from her sorrow and approaches her bed...
