After the Buddhist scriptures are successfully obtained, the three realms seem to be peaceful, but in fact, the immortal rules are rigid, sects are strife, and good and evil are out of balance. Buddhism, Taoism, and heaven are constraining each other. Old and new grudges are intertwined. Countless immortals and demons are innocent of their grievances, and some vicious demons and evil immortals are at large. The Tathagata Buddha, Taishang Laojun, and the Jade Emperor finally reached a consensus and canonized Sun Wukong, who had returned from the Buddhist scriptures, as the Great Sage of Judgment in the Three Realms. He was in charge of the only judgment platform in the Three Realms - the Demon-Slaying Platform. For matters such as redressing grievances, presenting evidence, convicting, and executing people, the "Seal of Judgement of Immortals and Killing of Demons" is given, which can be used to judge gods and generals, and to judge monsters and ghosts. Even if they are immortals, Buddhas, nobles, they must bow their heads and listen to the trial. They are not bound by the rules of heaven, Buddhist precepts, and Taoist rules, and they can only judge the case according to the justice of the three realms.
