Kokoro and Ken are childhood friends. In front of her parents, she is embarrassed and pretends not to like each other at all, but in reality she is in love with each other. At that time, the two parents decided to go on a trip to the neighborhood association. Kokoro and Ken, who are supposed to be answering machines, want each other as if their ties are off when her parents leave for a trip and they are alone. In front of their parents, the feelings and libido that had been stored up exploded, and the sex of the two developed into a raw vaginal cum shot as they intersected violently.