"Chi Zhen, no more quibbling, it's useless," Chi Yu said coldly, "Your words just now are enough to prove that you killed Shi Muqiao. Plus, the gossypol you added to the cooking oil, I've already found that out. The doctor has examined me and Little Zhan. Neither of us has lost the ability to have children. Your plot has failed."
For a moment, Chi Zhen's features twisted, "You...you even know about the gossypol?"
Chi Yu looked at him coldly, "I can understand if you wanted me and Little Zhan to lose our fertility. If we didn't have children, and you did, everything in the Chi family would have to be passed on to your child. But what I don't understand is why you tried to harm Qingqing. Qingqing is gentle and kind, and treats you well. Why harm her? Are you a beast?"
"Yes, I admit, I added the gossypol to the cooking oil," With no way to deny it at this point, Chi Zhen had to admit it.