As the world's barriers gradually collapse, the timeline spontaneously gives birth to guardian spirits, using itself as a shield to maintain the existence of heaven and earth. Some people covet the majestic power behind the barrier, trying to tear apart the rules and seize power; some people use the spirit body as their faith and flesh and blood as their barrier to protect this crumbling world to the death. The game of protection and plunder begins. When the temptation of power sweeps across all living beings, who can guard the last border of the world?