Rong Duanmu

One of the six elders of the Mohist School, Sister Rong, as she is called by Yue-er, is a gifted medic and an expert at fighting using needles. Due to a warning from her old teacher, she vowed never to treat any swordsman or person who used martial arts for personal gain. This greatly conflicts her when she sees, Ge Nie, a swordsman who was injured defending her comrades, and Tianming’s words slowly get through to her. To Yue-er, she is a loving elder sister, even though they are not biologically related, and the kindness she hides within her is reflected in her younger “sibling”.

She falls for Ge Nie (who is revealed to love her also) and protects him from Baifeng's attack with her body, and never wakes up during the third season.

https://bangumi.tv/character/20964 https://baike.baidu.com/item/%E7%AB%AF%E6%9C%A8%E8%93%89/5401196 https://myanimelist.net/character/110843/Rong_Duanmu