I Picked up a Little Junior Brother When I Was Going Through a Tribulation.

When the Six Avenues Temple ascended to the Divine Court again, the ancient seal was lifted... A demon king appears in this world and sweeps across the world! There is a demon emperor coming to the sky, invincible in the six realms! There is also a young emperor of heaven who orders all around to rebuild the heaven and imitate the ancients. The era was reversed and the universe was in chaos, until a sword light penetrated the past, present and future, sweeping across the sky and the earth...