A 21-year-old pure and beautiful girl experiences sex under the condition that she already has a boyfriend—enter the ultimate amateur pickup world. Though serious and unapproachable by nature, she deeply values her loving relationship with her boyfriend. Yet, her body reacts involuntarily to the touch of others, regardless of her boyfriend's existence. Her radiant fair skin and hidden big breasts make her stand out as she enjoys a drinking party with her fellow tennis club members. The rule of having a boyfriend must never be broken, but her body betrays her will. Even unconscious, her body—trained by her boyfriend—still feels pleasure. Her pale skin flushes pink, and by the time she regains consciousness, she's already enveloped in irresistible ecstasy. Moans slip out unintentionally, her hips moving on their own, independent of her mind. During happy hour, she's completely overwhelmed, drowning in pleasure. Creampies are, of course, included. Any woman will feel pleasure once penetrated. Straight into the gap between heart and body—BAM!!