As a close friend for ten years, Fuka has been deeply troubled by her friend's husband's infidelity. Trying to help, she confronts him and lectures him sternly, but he shows no remorse, arrogantly claiming, "It's not my fault—women just come after me because of my big dick." Fuka's anger finally erupts. If that's his attitude, she declares, she'll show him exactly what his prized big dick can do. Mocking him for his pride, she's instantly shocked when faced with his massive cock—her body unconsciously begins to ache with desire. This explosive turn of events holds the key to the story.