In ancient times, when Emperor Yu was controlling floods, he used the Nine Tripods to suppress the "Nine Nether Fissures" and seal the ghosts underground. In 2025, due to the over-exploitation of earth's core energy by humans, the rift reopened. Ghosts penetrated the surface in the form of "turbid air" and eroded biological genes, forming "turbid beasts" (low-level ghosts) and "nether species" (high-level intelligent ghosts). The world has entered the apocalypse of "unbalanced yin and yang". Human beings need to awaken the bloodline of "commanders" and use the remnant souls of alien beasts recorded in "The Classic of Mountains and Seas" as a medium to contract with ghosts and purify the turbid air.
