N years ago, the leaders of the East and West went to the human world to become ordinary people. So some people in the sky and underground couldn't bear the loneliness and secretly ran to the human world.
Vampires become stars, angels become godfathers, and dark magicians become priests. The fairy became the dean of a kindergarten, and the ghost became a Feng Shui master. The monster opened a mental hospital.
Western magic vs Eastern magic.
All kinds of dangerous people are hidden in City A, and maybe someone you pass by is one of them.