His character is due to the injuries he suffered as a child, and his childhood was also very dark, which led to Tuoba Yu's psychological shadow.
When I was a child, Tuoba GUI was often kept in a dark room. As an adult, he dared not turn off the lights and sleep at night. And Li Weiyang only cured the shadow of his childhood in an accident. Therefore, Li Weiyang is the sunshine in his life for Tuoba Yu, and the lively and cheerful Li Weiyang has become his obsession.
Unfortunately, Li Weiyang has no TaBaYu in his heart. On their wedding day, Li Weiyang and TaBaJun exposed their true colors, so they didn't really get married. In the end, Li Weiyang and TaBaJun got married, and all shall be well.