In Shibuya, a major city attracting beautiful women from all over Japan and even the world, comes a real street pickup project styled like a YouTuber challenge—testing exactly how much money it takes to get a gorgeous girl to agree to enter a love hotel. It's tough work; approaching B-tier girls often ends in rejection. But then they spot an incredibly hot half-Japanese model, Naoko (20), with an unreal body, and go in for the direct approach. At first suspicious—"Huh? This is super sketchy…"—she warms up after hearing about the cash prize: "I'll do it for my boyfriend!!" They successfully enter the love hotel, though it costs 50,000 yen—worth every penny. Now, it's time to strip this half-model Naoko completely bare. During the interview, she insists, "My boyfriend must never find out!"—but reveals her boyfriend is actually her middle school homeroom teacher, still an active educator. She admits she's less afraid of her boyfriend finding out than the education board catching wind, yet clearly enjoys this forbidden romance. As her huge breasts jiggle with every movement, they check her size: "F… maybe G?"—a bombshell revelation. While massaging her perfect tits, the crew can't help but envy her as educators. Even as she flushes red from drinking during a break between lectures, they maintain restraint just long enough to inspect her lingerie. Barely resisting the temptation of her estimated G-cup breasts, they pull off her skirt—only to find a thong! That's the final straw. Any remaining pride as her former teacher vanishes—full switch flipped. As negotiations escalate, Naoko's true allure emerges. Her G-cup breasts are hypersensitive—when touched, she moans, "It feels too good!! Nooo!!"—but her protests sound exactly like permission. Paying 70,000 yen, they intensify the assault. Her defenses—and panties—gradually drop, until suddenly they're in the bath, face to face with her completely naked. Excitement at maximum! With nothing left to block the way, they penetrate her—and though she cries, "I have a boyfriend!!", once entered, she cums repeatedly, screaming in ecstasy. This stunning G-cup girlfriend of another man drives them wild—so aroused they climax early with a massive facial. "Waste of sperm? Nah, totally worth it!" Satisfied, Naoko heads straight to her afternoon university lecture—no shower, no cleanup.