He is the son of Pei Wu Jiang, the former military commander, and the most beautiful man in Huawuan City.
He has a marriage contract with Chen Qian Qian, the 3rd princess, since he was young, but at first he rejects her because of her absurd and uncontrollable behaviour.
After meeting Chen Qian Qian, who was stuck into the script by scriptwriter Chen Xiao Qian, he gradually became attracted to her and was reluctant to break off the engagement, and even worried about her safety and arranged for Su Ziying to follow her, becoming Chen Qian Qian's sidekick.
Later, he is encouraged by Chen Xiao Qian to join the army.
(Source: Wikipedia)
