Self-Defense Lesson

Seong-Hyeon is the dedicated master of a struggling Hapkido studio that is slowly falling into ruin. Despite his martial arts expertise and best efforts to keep the business afloat, he faces the grim reality of impending failure. However, his fortunes take an unexpected turn when he suddenly acquires a mysterious program that promises to transform his failing dojo into a thriving success, provided he follows its instructions. The program presents him with a series of quests, claiming that completing them will guarantee the prosperity of his studio. Desperate to save his livelihood, Seong-Hyeon prepares to do whatever it takes, only to discover that the tasks are far removed from traditional martial arts training. The nature of the required missions introduces a shocking new curriculum under the guise of teaching self-defense. Instead of physical combat techniques, the program's demands are explicitly sexual. To fulfill the conditions and secure his studio's future, Seong-Hyeon is tasked with an intimate objective: he must bring a female member of his studio to climax. Bound by the strange system's rules, he is forced to navigate this highly unconventional and provocative path, blurring the lines between his role as a martial arts instructor and the bizarre requirements needed to save his life's work.