The Cold Moon Falls on Earth

He was originally a saint who was not outside the Six Realms, hiding in the ruins of Kunlun, silently guarding all living beings in the world. However, due to an accident, he fell into the mortal world and experienced life and death, love and hatred. How will his life change next? Can he still return to the ruins of Kunlun? Or choose to fall into reincarnation for love? Let me tell you slowly...