Popular series featuring a married woman and well-endowed boy gets a new installment with Kijima Airi. The story unfolds from the perspective of a wife who married a man with a child, starting a new life as a family of three with her husband and stepson. One day, she accidentally sees something she shouldn't have—her stepson's enormous cock, far surpassing her husband's in size. The shock profoundly shakes her. From that day on, every time she glimpses the boy's crotch, a throbbing ache stirs deep within her panties, awakening her feminine instincts. Unable to suppress her growing desire, she's eventually driven to give in, committing an unforgivable act. The interplay of her impulses, guilt, and shifting emotions adds deeper intensity to the story.