Yuna Shiina is a plain office worker handling accounting, often isolated from her colleagues and treated as an easy target for advances. Trying to relieve the daily stress, I start pursuing a relationship with her. However, surprisingly, beneath her modest appearance lies a stunning figure—big tits and a thick, juicy ass—and her hypersensitive body reacts intensely, as if it's been ages since her last sex. Her responsiveness is so overwhelming that I start to feel like a real stud. She climaxes repeatedly, squirting each time, driving me to want her even more. Realizing she's too good to remain just a plain married sidepiece, I decide to mold her into my perfect woman.