Nobue Tahara and her husband Tetsuya, now in their seventies, have weathered many storms throughout their long marriage, maintaining their bond despite numerous challenges. However, Nobue recently found herself troubled by Tetsuya's behavior. Always somewhat domineering, he had lately begun acting childish and selfish, causing her increasing stress. Unwilling to spend her golden years in such discomfort, Nobue decided to take Tetsuya on a hot spring getaway. Hoping to rekindle their connection, she eagerly set off on this long-overdue couples' trip, full of hope for a renewed intimacy.