The upright little Taoist priest who went down the mountain to practice met the prince of the current dynasty who was not destined for the throne but actually had the world in mind. The little Taoist priest, who was curious about the worldly world, joined the prince's staff and became a staff member in order to gain experience. His original intention was to gain experience, but he did not expect that the little Taoist priest brought himself into this mortal world. Although he eventually ascended to immortality, he was full of regrets.
Concept: joining the world and leaving the world, rules and nature