Kana's parents passed away seven years ago. She had to drop out of school to work and support her younger brother. Thinking that spoiling her brother would make him feel her love and become obedient and studious, Kana was shocked to find out that he kept gambling and eventually joined a gang. One day, he returned home scared. After questioning him, Kana learned that her brother had stolen money from the crime boss and gambled it all away. He was summoned to meet the boss, who surely wouldn't spare his life. Feeling sorry for her brother, Kana decided to accompany him to beg for forgiveness. When the boss laid eyes on Kana, he was captivated by her beauty. He agreed to forgive her brother's debt, but with a condition. She had to become his woman for ten days!!! And so, her new life began. She was only allowed to wear sexy lingerie or be naked so he could fuck her whenever he wanted, even in front of his underlings. But the pleasure from his huge, powerful cock was something her boyfriend could never provide. Her body gradually became addicted to his cock, and she couldn't imagine living without him. Finally, the ten days passed, she could leave, and her brother's debt was cleared. However, she didn't want to go. She wanted to stay with him forever, to be fucked by him and to enjoy this happiness forever...