The little doctor who wears the past

Li Li, who spent five years in the apocalypse, was murdered in a zombie attack!Fortunately, he crossed over to a younger brother who had the same name and surname as Dayu Chao.In ancient times without zombies!Li Li decided to pick up the pre-apocalyptic skills and become a quiet doctor.I heard that the brother here is going to get married... Don't be afraid, it is said that his captain also traveled through time.