In the afterglow of the apocalypse, all dharma will be destroyed, the heaven and earth will be torn apart, and the world of immortality will be reduced to ruins. Su Lan, the nameless lantern holder of the Tianji Pavilion in the past, held the broken Taoist artifact "Reverse Flow Lamp" in her arms, and walked forward in the gap between the exiles and the newborns. The road to reconstruction requires not only restoring the old, but also solving the mystery of the collapse of heaven - who is secretly rewriting the laws of all things? Su Lan used the memory fragments as a guide to collect the "original mantra" scattered across the world, hoping to reshape the order, but she didn't know that every repair would trigger new changes, old friends turn into enemies, and the world would bite back. Her motive is not hegemony or revenge, but is guided by the "human heart" to find the original goodness of cultivating immortals and awaken the will of creatures that have been annihilated by the doomsday. Fantasy and ruins are intertwined, and cultivators no longer stand aloof, but face crises with mortals. Can Su Lan ignite the fire of a new era in the dual conflict between spiritual energy exhaustion and law reshaping? The highlight of the story lies in the struggle for the reconstruction of Tao and the world, good and evil - the path to immortality may not necessarily go up, but sometimes needs to go down and take root in the human world.