When his father leaves for a three-day business trip, the son devises a bold plan to lose his virginity to his beautiful, big-breasted mother during their time alone together. Through daily life—helping with cooking and casual conversations—they gradually close the emotional gap. He intentionally brushes against her, increasing physical contact, and slowly her demeanor begins to shift. As his advances grow bolder, she finds herself increasingly drawn to him. The unfolding tension leads to a climactic conclusion that demands attention.