Why did Brother Yunzhiyu betray him?

I can't stand the old blade giving up the position of the blade to Gong. According to Sina Entertainment Network, Brother Yunzhiyu is a character in Yunyuyu, and the reason for his betrayal is that he can't tolerate Lao Bian giving up his position to Gong. YunYu is a TV series directed by Gu, starring Yu Minhong and Zhang Linghe, and starring Cheng Lei, Lu, Jin Jing, Sun Chenjun and Tian Jiarui.