Love in a Dream

Su Qin, a noble concubine suffering from a strange disease, was kidnapped by a man in black after entering the palace. The man agreed to kill the king on the condition that she would stay with him and marry Ning'an Prince Lu Huan.
(Source: China = Tencent Video || Translation = NightWanderer at MDL)
~~ Adapted from the web novel "Gui Fei Qi Ju Zhu" (贵妃起居注) by Xu Jiu Wang Chuan (许久望川).