Seal of Demons: Six Hundred Years' Promise

In ancient times, the evil god Deer Demon King descended on the Chinese mainland, and a soul-eating miasma swept across the land, turning the people into purgatory. At the critical moment, a total of twenty guardians from the five realms of humans, ghosts, demons, immortals, and beasts, using their own origin as a guide, activated the Chaos Demon-Sealing Array to seal the Deer Demon King in the Demon-Sealing Abyss - however, this seal could only last for six hundred years. The guardian exhausted his power and turned into twenty crystals containing the origin of the five realms, scattered among the secret mountains and rivers of the mainland. The prophecy shows: Six hundred years later, the Deer Demon King will break out of the seal. Only by collecting all the crystals and having them controlled by the descendants of the guardians can the catastrophe be prevented again. As time goes by, the six-hundred-year period is approaching, the Yellow River is covered with black streaks, the creatures in the demon realm are crazy, the ghost realm is spreading, and strange phenomena occur frequently on the mainland. Shen Jinghong, a descendant of the Shen family in the Demon-Suppressing City of the Human Race, was the first to sense the crisis, holding the red crystal left behind by his ancestor Shen Nong. Following the clues in "The Record of Demon Sealing", he embarks on a journey to find the remaining nineteen crystals and their successors - on the way, he will meet the fox girl from the Demon Realm, the Nether Messenger from the Ghost Realm, the Taoist disciples from the Immortal Realm, the ancient beast descendants from the Beast Realm, as well as the forces hiding in the dark that covet the power of crystals. The successors of the Five Realms gathered due to fate, but there were also rifts caused by racial barriers and past grudges; the crystal not only hides the power of the guardians, but also seals unknown secrets of the past. As the minions of the Deer Demon King press closer, and as the cracks in the seal widen, can these strangers put aside their differences, rebuild the Chaos Demon-Sealing Array, and renew the covenant of protection made six hundred years ago? The life and death of the Chinese mainland depends on every crystal in their hands and the unquenchable protective fire in their hearts.