Ritsu Nagasawa, a new actress with a youthful, innocent appearance and a defenseless charm, decided to take on a risky job as an "adult toy" on social media, using her youth to earn money by any means necessary. Left alone by the male staff member, she begins masturbating with a toy, frantically stimulating herself with a vibrator, trembling and climaxing repeatedly—driving the staff member wild with excitement. He makes her suck his bare cock, and as he thrusts into her with his real dick, she becomes blissfully overwhelmed by the warmth of human skin, something the toys could never provide. Her experience unfolds as a dangerous romantic entanglement born from youth and vulnerability. Often seen alone in urban areas wearing delinquent-style fashion, she had been earning pocket money through sugar dating. When a man proposes payment—2 for condom, 3 for bareback outside, 5 for creampie—she agrees to be filmed for just 20, accepting the deal. Soon, her pussy is slurped on deeply, and with a helpless, puppy-like moan, she accepts full penetration, getting creampied on the spot by the man who paid her upfront in cash. Influenced by friends, she starts working out at a gym, where she loses her virginity. Her rented gym wear reveals a thong underneath, forcing her to begin training despite the exposure. As she moves, her spandex digs deeper, and a young male trainer takes advantage of the one-on-one session, using his authority to grope and fuck her freely. She becomes so aroused there's no turning back, getting thoroughly creampie-filled with thick "protein"—his semen. Exploited for her youth and naivety, Ritsu Nagasawa is repeatedly used and bareback-fucked by men in this precarious creampie-filled tale.