The immortal body is called Teevat

Wu Cheng is an ordinary person. For unknown reasons, he traveled to Naruto and became one of the sacrifices of the evil god cult. He traveled again on the spot. When he woke up again, Wu Cheng came to the continent of Teyvat that he had always longed for. However, in the human body laboratory of Dotore in the winter, he thought he would die in the laboratory. But Wu Cheng gradually discovered that... he seemed to have the ability of immortality. So he escaped from the magic cave, and after that, he left the legend of the immortal in the continent of Teyvat... Wendy: Wu Cheng. He is a guy who can't die. Don't worry about his safety, let's go and have a glass of cider. Zhongli: In terms of universal rationality, the boundary between life and death for Wu Cheng is...