Pusa

Pusa is the Elteber of the Uyghur Khaganate, brother of Li Changge's mother, Li Jin, and therefore, uncle of Li Changge.

History
He first appears around Chapter 47, and still believes that Li Jin, his own sister, is alive. He becomes spooked when recognizes the mole under Li Changge's eyes as similar to that of his sister's. At the time, he did not know they were related and thinks that she tricked him.

In Chapter 52, when he discovers that Li Changge has the exact same unique hairpin from her mother that he had made for Li Jin, he realizes that they are related by blood. However, Li Changge lies about how her mother died, and does not mention that her mother was assassinated. She is worried that there would be a conflict between the Tang dynasty and the Uyghur tribe if they knew her mother's death was caused by Li Shimin, causing more unnecessary bloodshed.

In Chapter 56-57, Li Changge becomes an advisor for her uncle, who has united all the Uyghur tribes to fight against the Eastern Turks, which is headed under Jieli Khan, adopted father of Ashina Sun. This inadvertently makes Li Changge and Aashina Sun enemies again. Pusa gives Ashina Sun a request, which is to fight under the Uyghurs against the Turks. He refuses, because even though he is a Khitan, he does not want to fight against his adopted families, which are Turks. Pusa even offers Li Changge's hand for Aashina, but he blushes and refuses. He believes that if Li Changge truly loves him, she would go with him, regardless of whether it is an order from her uncle or not.