Shushan, Blood Demons—the legendary world of sword immortals and wandering heroes is intricately connected to the real world. After his friend disappears, the young man Michael Bolton learns that beyond this world, there are countless parallel worlds, and the entanglement of cause and effect has led to a backlash against the main world. In order to save his friend, Michael Bolton resolutely enters the realm of Shushan, embarking on his own path of cultivation.