Wife Rikuko (29 years old). Four years into marriage, no children yet. Pressured strongly by her parents, she married a man four years her senior—an alumnus of her father's alma mater. Her parents approved the relationship, leading to marriage after just one year of dating. Raised in a strict household, she was taught to obey her elders without question and accepted things like tutoring, extracurricular classes, and curfews as natural. However, worn down by her husband's control, she begins to crave just one moment—just one time—of doing something wrong. The devoted, obedient housewife secretly plans a one-night, two-day trip with a man she's never met before. As she travels closely with him, the traditional Showa-era woman who has always lived for her parents and husband starts to awaken to new emotions. Her longing for freedom begins to surge, setting her heart into motion on this journey.