I'm Refining the Manki Banner in Tokyo

Light novel style. The protagonist travels through time to cultivate immortality and become a thousand ghost banners, and then travels to Japan, a world of ghosts and gods from the underworld, where he creates an organization behind the scenes to refine ghosts and gods to save the world. Pretty easy. Tags: Shura field, invincible flow, daily writing, behind-the-scenes flow Introduction: There is no righteous law in the world of heaven, and the ghosts and gods in the underworld are evil. Kuroki came to Tokyo with the broken Manki Banner to replace the boy who had just entered high school. Use evil people as carriers to bring ghosts and gods from the underworld, refine them into flags, and use the luck of the atmosphere to practice. Reveal mysteries, fabricate mysteries, and destroy the ghosts and gods of the old era. In the end, he became the human emperor of the new era, controlling Yin and Yang. "This is the Banner of Ten Thousand Ghosts. Why do you call it the Banner of the Human Emperor?"