Underworld Currents: The Black Swan Doctor Wife's Revenge

Plastic surgeon Su Tang is forced to enter a marriage of convenience with Gu Jingshen, the CEO of the Gu Group, to save her younger sister, who has leukemia. After the wedding, she discovers that the Gu Medical Group is involved in illegal dealings, and that her sister's illness is connected to the group's genetic experiments. By day, she plays the gentle young madam to gain their trust; by night, she becomes the "Black Swan," using her advanced hacking skills to infiltrate the group and gather evidence. In the course of her revenge, she unexpectedly learns that she is the illegitimate daughter of the Gu Group's founder, and that Gu Jingshen is her half-brother. In the end, she exposes the truth, brings down the business empire, cures her sister, and achieves independence as a woman.