I Was Reanimated by the Impure World Reincarnation

In a certain city, a young man was looking at the computer screen, murmuring: "The Impure World Reincarnation army? How do I play this? Undying, no chakra cost, and few know sealing techniques? Hmm? What the hell is this feeling?" As he spoke, he suddenly felt a tremendous pulling sensation on his scalp, as if his soul was about to be pulled out. Along with the pulling sensation came a huge pain. As the pain grew stronger, the young man finally couldn't bear it anymore, his eyes rolled back, and he fainted. (Also known as Yuan)