A documentary-style work depicting a teenage girl with large breasts who harbors masochistic fantasies and is lured in by middle-aged men she meets through social media. With a bust measuring 100 centimeters, she is shown in her school uniform after class, engaging in intense sexual acts in a department store restroom, including aggressive deep throating, outdoor G-cup breast suction, rough groping, and repeated drooling to the point of near-vomiting during her first deep-throat experience, her sexual frenzy escalating uncontrollably. This is the first part, realistically capturing how a teenage girl becomes ensnared by online temptations.