To earn money for dates with her favorite band and boyfriend, Tsukumo takes a part-time job at a convenience store. However, the store manager, a perverted old man from the Showa era, keeps hitting on her and enjoying himself alone. One day, while working, she catches him masturbating in the back room... The shock of seeing something she didn't want to see was great, but even more so, Tsukumo's heart was shaken by the manager's large penis. Ensnared by the manager's charm, she becomes a cock addict... Even though her boyfriend is nearby, she gives the manager a blowjob with his huge cock. The more shifts she works, the more she craves the manager's cock, her tight pussy becoming insatiable. While restocking drinks, she has to replenish his sperm supply or it won't keep up with her insatiable desire for his cock, leading to a passionate intergenerational affair.
