With her husband away on a long business trip, Shiori finds herself starved of a woman's pleasures. When she accidentally sees her son's friend, Yoji, with a strong erection, she feels a deep ache in her womb. Lacking the courage to approach him, she resorts to masturbation to relieve her tension. Meanwhile, Yoji, excited by Shiori's unexpected side, seizes a chance to ask her for a handjob. Shyly, she asks, "I'm just an older woman... are you sure about this?" But as she strokes his thick cock, she can't resist any longer and eagerly takes him into her mouth, seeking her own pleasure. Their mutual desire intertwines, sparking a passionate new relationship.