C1201 It doesn't matter whether you live or die

"Since you already know the truth, there is no need for me to hide it anymore. That's right, I need your son's heart as a medicine to be able to cure the Gu poison in my body. Now that you know the truth, I'm not afraid of anything. I know you are a cruel and merciless woman. If you want to deal with me, you just have to do it to me. It has nothing to do with my big brother