" Original Sin " was a fantasy novel written by Mansheng Xiyu. It told the story of a human who had original sin and was adventuring in a different world. The background of the story was a fantasy land called Tivat. There were many races on the continent, and humans were one of the most powerful races. The protagonist of the story was a young human boy who embarked on a dangerous and challenging adventure because of his original sin. In the process of his adventures, he made many friends and enemies and constantly searched for his own strength and answers.