Miaybi was an ordinary office lady working at a typical trading company. She spent her days overwhelmed by work, constantly worrying whether she'd make it home by the last train. Exhaustion and irritability built up inside her, leaving her in a terrible mood every evening. One day, she collided with a group of strangers gathered randomly on the street, getting caught in an unexpected altercation. As usual, people either ignored the scene or glanced with mild concern, but no one stepped in—nobody wants to get involved in trouble. Then suddenly, a man appeared out of nowhere. With one hand, he grabbed a thug and effortlessly threw him aside. His strength and speed froze the entire group in place. The thugs fled, muttering insults as they ran. Miaybi stood stunned, but before she knew it, she was clutching the man's hand. After that, her memory went blank. When she came to, it was morning in a hotel room. He was already gone. That night had been more passionate and intense than any experience she'd ever had with a man. Her previous belief—that sex without love was meaningless—was completely shattered. From then on, she longed to see him again, to be held by him. A powerful desire took root within her. Since that night, her encounters with men multiplied endlessly. She searched desperately for someone who could give her the same pleasure as that man, but no one measured up—only her experience grew. Then one day, she met him again. Once more, she found herself grabbing his hand. Though countless men had used and trained her body since that night, being with him felt exactly the same—fierce, passionate, overflowing with pleasure. When she realized he was about to leave after she climaxed, she frantically clung to him. "I can't live without you," she blurted out instinctively, surprising even herself. He smiled, took her hand, and pulled out a piece of paper. "Then let's do something even more fun." She believed with all her heart that he could show her greater pleasure than ever before—and signed the paper without hesitation.