Eating Poisonous Mushrooms by Mistake and Becoming a Necromancer!

That year when he was picking mushrooms on the mountain, he accidentally ate poisonous mushrooms. He was on the verge of life and death, but he survived with difficulty. But from then on, everything changed. Li Hun began to hear some strange sounds and see things that others could not see. At this time, Li Hun discovered that he had already stepped into the threshold of a psychic. ... But Li Hun's body underwent strange changes. ... ... (No system + grams system)