Yuriko is an office lady who recently entered the workforce. She appears lonely, as her boyfriend lives far away and they rarely get to see each other. But it gradually becomes clear that her reason for participating wasn't just loneliness. Though she looks innocent and demure on the outside, who would have thought she could become so wildly uninhibited? This experience reminds us once again that a woman's true nature can't be judged by appearances alone. The more you understand her feelings, the more irresistibly drawn to her you become.