A young man named Masaru moves to Tokyo to become a certified public accountant but fails his exams multiple times, becoming deeply disappointed. His mother Rina takes him on a hot spring trip to cheer him up, worrying genuinely about her son's lack of energy. Despite being physically exhausted, Masaru becomes aroused upon seeing Rina's reassuring figure in a yukata after their bath. It has been three years since he last experienced an erection due to the shock of failing exams repeatedly, making it difficult for him to control himself. He sneakily peeks at Rina's breasts under her yukata...*Distribution method may vary depending on the recording contents.*
