Initially, she was worried that killing would be detrimental toward her son.
But after listening to that Young Master's words, she knew that this was an absolutely perfect plan. Not only could she get someone else to do her dirty work, she could even destroy the Zhang family altogether!
She had no reason to refuse. Of course she was willing to do anything!
Moreover, the helpful Young Master also helped her to extend her life, so she could continue acting like a living person even though she was dead. She spent more than ten days observing the hours at which Zhang Yu and the girls met. During this period, her body kept changing, but nobody was aware of it except for Ah Ling.
Yet the person in front of her could guess that she was dead!?