If there is another unknown realm in the realm of human existence, it should be the Tomb of Souls. In addition to the mysterious Dragon Group, the strange Dark Council also has an even more secretive organization in the human world - the Soul Guards. Their mission is to guard the corpse souls and corpse beasts of creatures that died due to wars, disasters, and viruses. Their mystery is like the soul tombs they guard. What's even more unimaginable is that they are a group of people who are on earth, but do not belong to this world...