It was only discovered 500 years after learning the scriptures that he was discovered by Zhu Bajie. He felt that Brother Monkey had changed. One day he noticed something strange about the fake Wukong, and then he realized that this was Brother Monkey, the six-eared macaque of the real and fake Wukong back then. Bajie was very angry and asked where the real monkey brother had gone, only to find out that he had died a long time ago. He impulsively fought with the six-eared macaque, was injured by the six-eared macaque, and ran away to find Subhuti. Subhuti finally came out of the mountain to ask for an explanation for Sun Wukong. Subhuti went to Lingshan. Tathagata was no match. Subhuti discovered that Tathagata had the shadow of the ancient dark demon on his body. It turned out that there was an ancient dark demon suppressed under Lingshan. Fuxi and Nuwa suppressed it back then. This Tathagata and some eminent monks in Lingshan secretly absorbed the ancient dark demon to practice in an attempt to become more powerful and dominate the three realms. No wonder they often do not take the Jade Emperor seriously. This time, he was discovered by Subhuti, who wanted to destroy Lingshan, bloodbath the demon monk, and avenge Wukong.
