One day, Leona, who was living happily with her husband, is asked by her husband to take care of his injured father-in-law. Because her father-in-law is stubborn, the helpers quit one after another, and Leona is chosen to take care of Leona. Due to this situation, Leona reluctantly goes to her father-in-law's house, even though she doesn't like him. She Leona closer to her father-in-law day by day, but one day while cooking, Leona accidentally cuts her finger. When her father-in-law sees this, he Leona and sucks her finger like a different person. Leona gradually begins to feel aroused by his intense and deep tongue...