Before young Matsuo, who aims to enter medical school, appears Kei Ginga, the private tutor, wearing a tight-fitting suit that accentuates her big tits. She carelessly conducts her lessons, treating them more like playtime than serious study. Enraged by her attitude, Matsuo prepares a beer laced with a rape drug he bought online. However, things don't go as planned—he ends up being forced to drink the drugged beer himself. As Matsuo loses consciousness, a warm and tender scene unfolds before him: Kei Ginga gently embraces him. Whether this is reality or hallucination remains unclear, but in that fleeting moment, her unexpected warmth deeply shakes his heart.