The Soul Travels Through the Three Kingdoms and Goes Against Heaven

Lin Yan, a doctor of traditional Chinese medicine who was not doing his job, accidentally traveled to the period of Guan Yu's Northern Expedition in the Three Kingdoms period while studying the weapons of the Three Kingdoms period. He seized the historical bug and changed history. He successfully saved Guan Yu and others, so that Jingzhou was not lost. He cured the plague, improved the people's livelihood, and strengthened the army, thereby gaining Guan Yu's trust. Later, using Jingzhou as a base, he assisted Guan Yu to support Liu Bei's successful Northern Expedition to unify the world.