Moving to the countryside, you're required to join a school committee, so you end up in the library committee, which has almost no members. That's where you meet Hikaru Minazuki. She appears serious and plain at first glance, but in reality, she's deeply curious about sex. Desiring all kinds of sexual knowledge, she devours every book she can find and longs to put what she's learned into practice. One day, she suddenly asks, "Can I see your erect penis?" Surprised, you're drawn in by her intense expression as she pulls down your pants and stares intently at your cock. Naturally, you get hard, and under the pressure of her curiosity, your own desire spirals out of control. Then she asks, "Can I lick it?" and starts sucking your cock with her small mouth. Despite being shocked by the taste, she eagerly responds to your passion, and you can't hold back—ejaculating right into her mouth. She savors every drop, tasting the cum thoroughly. Her curiosity doesn't stop there—after school, things escalate to full sex. Hikaru takes the cowgirl position, impaling herself on your cock and moving her hips freely. "I've read that cumming inside feels the best... please come inside me," she pleads. With high-speed, pounding cowgirl thrusts, you can't resist and blast a creampie deep inside her. She moans in satisfaction, "The feeling of your cock pulsing and shooting cum inside me... it's amazing... You're still hard, right? I want to do even naughtier things." Like a sex addict, she keeps fucking you over and over again in the library, her intense passion and obsession deepening your relationship and sparking new erotic episodes.