After being invited over to his girlfriend’s house while her parents are away for the night—a scenario he’d been secretly hoping for—the protagonist battles nerves about living up to expectations. To boost his confidence ahead of what promises to be an intense night of passion (and likely a satisfying climax), he takes an aphrodisiac pill. Just as anticipation builds toward his girlfriend's slumber party rendezvous,
he meets Mitsuri Nagahama—her stunning older sister. Mitsuri is breathtakingly beautiful and boasts a scorching physique that immediately captures his gaze. As the evening progresses and his girlfriend succumbs to intoxication fueled by alcohol and his potent stamina-boosting pill, his erection becomes an unbearable pressure demanding release. At this critical moment of need,
Mitsuri approaches him with deliberate allure. Despite a nagging sense of guilt regarding his girlfriend, the sheer magnetic pull of this captivating woman proves too much to resist. This scene delivers irresistible tension as Mitsuri claims her turn, ready to drain every drop from him in a passionate encounter.