A dull and boring employee who is constantly being scolded by his boss...One night, he happens to take advantage of the company's most beautiful office lady's weakness. She says, ``If you listen to me for just one day, I'll shut up...'' She decides to sign a mistress contract with the best idol-level woman who was Takamine's flower... . A cowgirl position where you can enjoy the exquisite body and beautiful meat to your heart's content, and a entangled kiss. A creepy, rich caress that crawls and licks like a slug. Ai, whose body and mind are controlled, transforms into a female masturbator who is ready to serve. ``I'm still going to enjoy your body all day long.'' It's an unforgettable day for a man who is devoted to his mistress who has fallen for pleasure. Covered in sweat, saliva, and love juices, covered in sweat, meat slave/mistress contract! !