Bloody Romance Episode 15

Gong Zi orders Yue Ying to bring Wan Mei back to Guihua City and administer an antidote to her, but when she is beset by enemies en route, the antidote is lost. At court, Prince Ning defends his brother when a zither performance turns out to be an assassination attempt, which Grand Tutor Yue manages to twist around so that the prince must accompany him to accept the surrender of an enemy general that Prince Ning feels confident is a trap. When violence erupts and they are betrayed, the prince takes the opportunity to question the grand tutor. Ling City, where Wan Mei is living as an anonymous cripple, is affected by plague and civil unrest, drawing the attention of Lan Luo, acting leader of the Blood Lotus Sect. (Source: tehfey at MyDramaList)