The grand dowager Empress had long thought of a way to solve the crisis that came on their family when Ji Yu was poisoned, that girl was supposed to be the Empress of the imperial family and give birth to an heir for the throne with Zhai Tianyu but after she was poisoned that hope died along with Ji Yu's disappointing womb.
In fact, the grand dowager Empress wanted to replace Ji Yu from the very day when she found out that she was poisoned and could no longer become a mother but the thing was Zhai Tianyu's guilt was enough to bind him to her, which was why the grand dowager Empress ignored everything else and turned a blind eye to Ji Yu's in the ability of not being able to become a mother but now that the guilt that Zhai Tianyu held for Ji Yu was turning into affection of the Empress, it was all right for her to start replanning everything from the start because she did not want to lose the taste of power that she had in her mouth right now.