20-year-old Ritsu's first sexual experience was just last year. It's hard to believe this pure, innocent girl would ever take part in such a shoot! With black hair, fair skin, and polite, refined speech, she answers interview questions with a sweet smile, shyly revealing her surprisingly massive breasts that perfectly contrast her childish face. She's still dating her first boyfriend, but after that initial experience, her milky white, perfectly round big tits suddenly grew even larger. For 20 years, her untouched breast potential lay dormant—until her first time triggered a surge in female hormones, transforming them into dazzling, snow-white melons. Along with this physical change, her sexual curiosity blossomed. The first time she saw a man's penis, she couldn't help but internally sigh, "Huh? What is this? A hairy elephant? Gross!" But she took it as a step into adulthood and tried her first blowjob. Seeing how much her boyfriend enjoyed it, she gradually began to feel excited herself. The first time he penetrated her, it was extremely painful—she almost shouted, "Are you trying to kill me?!" But after they kissed passionately, she felt warm, slick wetness welling up inside her, and slowly started to feel pleasure. As he thrust gently, she began to sense something surprisingly good. Repeating sex with her boyfriend, she discovered the pleasure of internal friction, eventually crying out, "More! Give me more! Even more! Aaaaaaah!" completely lost in sexual ecstasy. Now that her boyfriend has returned to his family home, their chances to have sex are limited. That's why she found a part-time job that offers a two-fold benefit—and without hesitation, she applied.