Helian Jiao Er's heart was filled with more and more loathing. The two sisters were on good terms before because they knew that they would help each other in the future. In the end, they would not end up any worse. The closer they were, the more prosperous they would be.
Now, Helian Mei had obviously become the humiliation of Helian Jiao Er. She was an unmarried girl who pledged to be married to a man without her parents' consent. Plus the family she would marry into had that sort of family background. It is uncertain what kind of things she would ask from her in the future.
Helian Mei only had this one thought and did not even try to put a stop to it. She looked on as Helian Mei drank the poisoned tea.
Anyway, the poison would not kill her and would only suppress her martial arts' qi.
The real poison could not get into the Phoenix Loft at all. Even the most solid plan could fail.