Tact, a new employee at Shouko's part-time job, has developed a secret infatuation with his muscular physique. After work, she invites him for a clandestine drink, taking advantage of his preference for older women. Tact readily accepts her proposition for a short-term affair, repeatedly seeking out her mature body. Shouko, in turn, responds intensely to the insatiable sexual desires of the younger man, fulfilling their lusts relentlessly, both during work and breaks.