In her desperation to earn money for her boyfriend's tuition, Azusa worked multiple part-time jobs while struggling not to make any mistakes due to exhaustion. However, she made too many errors and was eventually fired. When she pleaded with the store manager, he gave her an unfair ultimatum - to perform sexual services during late night shifts or face unemployment altogether. Reluctantly accepting his terms, Azusa found herself being trained by a perverted senior employee... Her young body was mercilessly taken advantage of as she tried to survive this humiliating situation.