Because Lin Zheng, a young man from the 21st century on Earth, was the reincarnation of the King of Angels and participated in the meeting of the Thirteen Angel Kings in the Western Universe, he traveled to the Heavenly Kingdom of the Western Universe and became Michael the Angel King. What Lin Zheng, a young man from Earth who traveled to the Kingdom of Heaven, is waiting for is the journey to becoming a god in a different world.
