Miku, the daughter-in-law, suddenly visits her father-in-law, suspecting her husband of cheating. When she can't reach her son by phone and presses him for answers, he tries to evade her questions. Frustrated and furious, Miku declares, "I'll cheat too!" Seeing her distress, the father-in-law takes action. How will the daughter-in-law's conflicted emotions be resolved?