After Being Reborn, the Divine Doctor's Daughter Won't Be Crown Princess

(Revenge after rebirth + teacher and student + secret identities revealed + devoted couple + happy ending + legitimate daughter) Jiang Shiyu is the legitimate daughter of the Duke's mansion. In her previous life, she devoted herself to the Fourth Prince, Zhou Xuandu, mastering music, chess, calligraphy, painting, schemes, and strategy for his sake. But on the eve of Zhou Xuandu's ascension to Crown Prince, he discarded her once she was no longer useful, joining forces with her cousin to drown her unjustly. When Jiang Shiyu opens her eyes again, she has returned to years earlier. Fortunately, there's still time to change things. Not only has she kept her memories of the arts and skills she mastered in her previous life, but by a twist of fate, she has also taken a master. There's just something strange about this master...