"Cooperation?" Li Chengqian's tone was full of doubt. He put down the memorial in his hand and stared at Lin Qingya, as if he wanted to see any flaws on her face. The light in the room was a little dim, and the sunlight could only shine through the window, casting a mottled light and shadow. Li Chengqian's face was uncertain. He didn't know what Lin Qingya was up to, but he was secretly a little uneasy.

Lin Qingya walked slowly to the center of the room and casually found a chair to sit down. She picked up the teacup that had been prepared on the table, took a sip, and then said slowly: "Brother Chengqian, I know you have always wanted to ascend the throne. Concubine De is one of your biggest obstacles. You have been looking for an opportunity to defeat her."

Li Chengqian's breathing became rapid. He stood up suddenly and waved his sleeves violently. The teacup fell off the table with a crisp sound of breaking. He said hurriedly: "What did you say? Who told you? What do you want to do?"

Lin Qingya calmly put down the teacup and looked at Li Chengqian with a hint of sarcasm in her tone, "Brother Chengqian, you are too nervous. I am not your enemy. I believe we have the same goal." She paused for a moment and continued, "You want the throne, and I want to rescue Li Rui. There is no conflict of interest between us, and we can use each other."

Li Chengqian's brows were tightly knitted together. He seemed to be thinking about Lin Qingya's words. After a moment, he asked, "What's your plan? How do you plan to rescue Li Rui?"

Lin Qingya smiled mysteriously, and she said: "My plan is very simple. I will take advantage of the conflict between you and Concubine De, your ambition to ascend the throne, and Concubine De's vigilance against you." She stood up, walked closer to Li Chengqian, and said softly: "I will make you Concubine De's nightmare, and you just need to help me open the back door to Concubine De's bedroom."

A hint of hesitation flashed across Li Chengqian's face. He seemed to be weighing the pros and cons. Lin Qingya's words moved his heart. Her words were full of temptation, but also full of risks. He had to be cautious.

"What guarantees do you have that you can succeed? What guarantees do you have that you can rescue Li Rui? What guarantees do you have that you can let me ascend the throne?" Li Chengqian asked a series of questions, not hiding the greed and fear in his heart.

Lin Qingya looked at Li Chengqian, her eyes full of confidence, and said, "I will prove to you that what I said is true. I believe you will not refuse this opportunity."

"I will prove it to you." Lin Qingya's voice was firm. She looked at Li Chengqian with a slight smile on her face, as if she had seen the dawn of victory. The room was silent, with only the flickering of candlelight, making a faint sound. Li Chengqian was touched by Lin Qingya's confidence. He remained silent, but he was struggling fiercely in his heart.

"What is your plan? What do you plan to do?" Li Chengqian finally asked. His voice was a little hoarse, full of hesitation and expectation.

"My plan is very simple. I will use my mind-reading skills to make Concubine De admit her crime of trying to assassinate Li Rui." When Lin Qingya said this, her tone was full of confidence. There was a sly light in her eyes, as if she had foreseen Concubine De's final fate. She walked to the center of the room, turned her back to Li Chengqian, turned around gently, and said: "Within three days, I will make Concubine De admit her crime. If I succeed, you will promise me to open the back door to Concubine De's bedroom for me. If I fail, you will not lose anything, and I will lose the opportunity to cooperate with you."

Li Chengqian's brows were tightly knitted together. He carefully thought about Lin Qingya's words, and his heart was full of anxiety and uneasiness. He didn't know whether Lin Qingya's plan was feasible, and he didn't know whether Lin Qingya could really succeed, but deep in his heart he was full of desire, desire to get the throne, desire to avenge Concubine De, and desire to get Lin Qingya's help.

"Are you really sure? This sounds too risky." Li Chengqian's tone revealed a hint of worry. He was worried that Lin Qingya's plan would fail, and he was even more worried that his own plan would be ruined because of it.

"Of course I'm sure." Lin Qingya answered confidently. She raised her head and looked at Li Chengqian firmly, as if telling him that she would succeed.

"Okay, I promise you." Li Chengqian took a deep breath. He decided to trust Lin Qingya. He decided to seize this opportunity. He wanted to use Lin Qingya's power to open the way to the throne for himself.

"It's a deal." Lin Qingya smiled slightly, her eyes were full of cunning light, as if telling Li Chengqian that she would definitely satisfy him. In the room, the night was getting darker and darker, but Li Chengqian's heart was full of expectations. He was eager to know Lin Qingya's plan, he wanted to know what Lin Qingya was going to do, he wanted to witness with his own eyes the scene of Lin Qingya using mind reading to pull Defei down from the altar.