Housewife Sayuri, 37 years old, married for 11 years with three children. The first lie she told her husband was "I'm going on a trip with friends..." Pressed by guilt, she couldn't bring herself to remove her wedding ring. Meanwhile, housewife Kae, 38, also continued wearing her wedding ring despite her guilt toward her husband. She joined this trip seeking "a little excitement," cutting ties with her daily routine. Repeating to herself, "Just today... only today," she exposes her naked body after a bath to a man other than her husband for the first time since marriage. Escaping their ordinary lives, burdened by self-reproach yet driven by hidden desires, their true selves begin to emerge.