After meeting on a dating app, he quickly invites her out for drinks, buys adult toys at Don Quijote, and smoothly heads to his sex room. Even without advanced pickup skills, this rapid progression into sex can occasionally feel like a lucky break. Natsuka, a serious girl with twin tails who maintains polite speech even after three hours, seems pure at first—like a country girl who moved to Tokyo dreaming of becoming an idol. But in reality, she's far from innocent. She used the app seeking someone to fulfill her desire for restrained sex, actively searching for a partner to make it happen. She claims to have awakened to sexuality as early as kindergarten, and by elementary school had mastered climaxing through thigh pressure. As she reenacts masturbation poses, her thick, plump thighs and perky ass peek out from her lifted skirt, making it hard to focus on conversation. When the vibrator she recently discovered is applied, her baby-smooth, snow-white skin flushes red and arousal surges uncontrollably. At first, she moans cutely—"Ah! Ah! An!"—but soon shifts into loud, raw cries of "Oooh! Oooh! It feels so good!" Penetration pushes her over the edge, resulting in an unexpected, erotic white-eyed, open-mouthed expression. With eyes rolled back, she begs, "Kiss me!!" This is eroticism at its peak. After their first round, she drops the formalities and returns to natural, relaxed conversation—an equally charming side of her.