Yu Xiao

Yu Xiao (毓骁 Yù Xiāo) is the current King of Nansu and Yu Qing's younger half-brother.

Appearance
He fist appears in bandits clothing, very simple and with a black coat. After he becomes king, he is mostly dressed in a white long dress with a golden embellishment and a long white (sometimes a golden) cape, with simple white boots. He wears a simple pair of earrings.

Personality
Yu Xiao is a kind and sweet person. He cares a lot for his civilians, what makes him a very good king. He is very loyal and helpful to his friends. Sadly after the betrayal of Murong Li and Gen Mo Chi he lost his trust in persons.

History
Yu Xiao tried to kill his older brother, Yu Qing, because he believed his ambition to conquer and going to war with other kingdoms only brought misfortune to the citizens. However, he failed the assassination and was sentenced to death. He was then saved by Murong Li, who changed the poison and hide him in his private rooms. In the beginning, he didn't trust Murong Li, but after spending time with him he eventually started to fall in love with him and thus, Yu Xiao started to trust him as well. After his older brother was killed by Tianxuan's soldiers, he becomes the new king of Nansu with the support of his grand tutor, Yu Yuan Kai, and Murong Li. Because of his relationship with the later, he helps him to get his kingdom, Yaoguang, back.

Shortly after, a series of misunderstandings cause problems in his relationship with Murong Li. When his grand tutor is murdered and everything leads to Murong himself, their friendship ends and Nansu and Yaoguang goes to war, a war that Nansu ends losing. At their last meeting, Murong Li tells him everything he had done and also that nothing can be the same as it was were before. Yu Xiao leaves the battlefield defeated and heartbroken. Eventually, he finds out that it wasn't Murong Li who killed his Grand Tutor but his close subject, Gen Mo Chi. After hearing this, he sentences Gen Mo Chi to the nail death, being the last time we saw Yu Xiao.

First season
In the series first season, Yu Xiao was portrayed by Chinese actor Wu Shuo. He is seen for the first time when the emissaries of the four kingdoms arrived at Nansu; he appears drunk and harassed Murong Li; he was stopped by the others emissaries and his brother. His role was very different from the one seen in season two, thus this incident was never mentioned again.

Trivia

 * He and Yu Qing share the same mother.
 * It is implied that Murong Li is actually his uncle, as Murong said "he should call me uncle" refering to Yu Qing during season one.