Six months into her marriage, Izumi-san had dreamed of a happy married life, but she's been troubled by her relationship with her husband, her inner frustration growing. With little intimacy between them, she began suspecting him of infidelity. Although he wasn't actually cheating, his cold remark—“Since we're married, having sex with me is your obligation”—only deepened her dissatisfaction, leaving her lost and uncertain about her marriage.