Ivan came to a medieval era where there was no extraordinary. He thought that his life would be spent in sensuality, but the system asked him to cure diseases and save people. Heal diseases, just cure diseases. Why are the props in the mall so strange? Make people sleepy A mushroom that does not wake up. After eating it, it will become a wolf's heart seal grass. A corrosive potion that kills vampires. After curing, curing, the whole world will become very different. There are more zombies, elves, angels, ghosts, Wizard, witch... (overhead world, behind-the-scenes class)