There Are Real Immortals in the Song Dynasty

He suddenly traveled to a six-year-old child and became a "living prop" for the gangster to deceive Song Renzong! The old Taoist tricked the young emperor into believing that he was a true immortal, and he accepted the protagonist who had traveled through time as his disciple, then he greased the soles of his feet and fled. Decades later, the dying Song Renzong thought of this "immortal fate" again because his prince was critically ill. All that can be found is the old liar's deserted grave and the "little fairy boy" who was left behind. Faced with the overwhelming pressure of imperial power and life-threatening prayers, the protagonist, who has only a modern soul, curses his master for cheating. However, at the critical moment of life and death, he discovered to his horror that he could really use magic. From a fake to a real boss, will he accept this incredible wealth or not?