The older woman risked exposing herself to poison the prince, which was a task someone had arranged for her. She had been in the mansion for many years, hiding in plain sight.
Although she had never accepted any missions, she did not expect to receive one so suddenly. Indeed, she had hidden very well; no one suspected her because she was Lan Xiyao's caretaker.
The older lady was good to Lan Xiyao and would not abuse her power in the mansion. Instead, she knew how to hide so that people would barely notice her existence.
Since she upheld her identity as a caretaker, everyone in the mansion respected her, making it easier for her to make her move. However, the older woman did not know Lan Ruobing would dream about her brother getting poisoned on the same day she would take action.
