Stop that, My Vampire Commander

Li Lingtong was the pampered daughter of the Prime Minister, until she suddenly became the daughter of a corrupt criminal overnight. She lost her position as the crown prince's finacee, and she was demoted to work as a scullery maid at a distant relative's estate. Betrayed and forced to endure bullying, her childhood friend exiled to the frontier, her father imprisoned, and her brother lost without a trace, it only got worse when she was sold to the infamous eunuch that controlled palace affairs. She thought she would be abused by the wicked eunuch, but he treated her with doting kindness instead. All he wanted from her was a sip of her blood once in a while…

(Source: Tencent, translated)