"Magic resurgence" has begun to appear around the world, and monsters from Western legends (vampires, werewolves, evil spirits) are breeding in the shadows of modern cities. The protagonist Gu Xie is a delivery boy who works hard to treat his sister's illness. When delivering food to a haunted house, he is accidentally involved in a sacrificial ceremony. After killing the cultists, he awakens the "Abyss Summoning System".
He discovered that killing monsters or completing special orders earns "soul points" that can be used to summon creatures from the abyss. At first, it was just skeleton soldiers delivering food and succubi taking the stage; as the crisis escalated, Holy Knights of the Holy See and the Dark Council appeared one after another. Gu Xie summoned death knights, bone dragons and even the fallen angel Lucifer, establishing an underground order in modern society that made gods and demons tremble, and finally revealed the game of gods behind the recovery of magic power, and ascended to the throne of the highest god.
