Six months ago, Nozomi's husband began living apart for work, leaving her to suffer in loneliness. Trying to forget her pain, she threw herself into housework, keeping busy every day. But as her isolation grew unbearable, Nozomi eventually stumbled into infidelity. Her indiscretion was accidentally witnessed by her own son. Seeing his mother's unfaithful act with his own eyes, he felt not anger—but overwhelming, instinctive arousal and desire...