I have an infinite number of shikigami - Chapter 317 - 133.Fukaeri Hallucination_3

A ritual gone wrong gave him the world's deadliest Class—now all he wants is blood.Zeth stole the most powerful ritual magic in the world from a mad cultist. A Class that's fueled by the blood of his enemies and human sacrifice. One that's illegal to use, punishable by gruesome death. And now that he has it, he's faced with a choice: hide away for the rest of his life from those who would hunt him down, or embrace the power, becoming the hunter to get revenge on the murderer that stole his friends' lives.For Zeth, that's no choice at all.His enemies have to die. And he plans to use every drop of blood, eldritch ritual, and demonic summoning he can to kill them.

A surgeon accidentally got the blessings of a system, shocked the medical industry, and rejuvenated countless people.

- Description from Novelupdates

Usually when you possess a novel, you start in the city, but I fell into the forest.

[Urban Masterpiece! Over a Million Subscribers] The Imperial Physician of Heaven was reborn in the City of Flowers, seized control of the world's viruses, absorbed Soul Consciousness, amassed wealth rivaling nations, held overwhelming power, and was surrounded by beautiful women.