Huge Debt: Gang Boss Asks for Love Every Night

[The male protagonist is affectionate and restrained + the female protagonist is duplicitous + double cleansing + two-way extreme pulling + strong male and soft female + sadistic and sweet interweaving + non-forced love + cat and mouse game] She is a cute teacher who teaches children how to dance, and he is a nightclub boss who whitewashes his identity. When they first met, she was drugged by her father and pledged to him. From then on, she owed a huge debt. She thought she was finished. But he said: "I won't force you." "You stay with me for one night, 150,000." She said nothing. He thought the money was too little, "200,000." She bit her lip tightly and her eyes were red. "300,000." She slapped him and said, "I don't like you." He had completely given up on liking her. She couldn't help but interrupt. When he regained hope and felt that she was interested in him, she would pour cold water on him. He asked helplessly: "What exactly do you want me to do?" She answered hesitantly: "... I don't know either." He said: "I still want to find a girlfriend. If you don't like me, don't be ambiguous with me." He didn't like this, it was too hurtful to give him hope and then let him down. When she finally plucked up the courage to approach, he suddenly changed his attitude and "forced" her to move away. She obediently left, but he began to pester her again. Later she found out - from the night they first met, he had looked at her for thousands of years.