The nanny realized this matter while washing the underpants for her. Secretly, she interrogated her son and learned that it was her son's wrongdoing. Not daring to disclose it, she quietly bought herbal medicine to treat syphilis for her but told her it was medicine to protect the fetus, deceiving her into believing that it's normal for women to be like that when pregnant.
Although Dong Wan'er was cunning, she was ultimately an inexperienced girl, no match for Ma Liubo. Besides, she had always trusted the nanny, so whatever the maid said was taken as truth, completely under her manipulation.
Under the maid's treatment, Dong Wan'er's syphilis was temporarily alleviated. However, she did not realize that the medicine was three parts poison, and while the syphilis was temporarily controlled, the medicine poisoned the fetus in her womb. It was just that, being an indirect infection, the toxicity was not strong enough to cause a miscarriage.
