The Miracle Doctor of Time Travel, Your Vest Fell Off

An Zelan, as a medical student in the 20th century, killed himself because of working the night shift. Is it a loss? I woke up and was born in a strange era, turned into a little kid, inherited the mantle of a miracle doctor, and still had unfinished books after traveling through time. Being chased by an evil and beautiful man, and being treated as a coolie by the sinister and loyal dog General Wolfdog, Anzelan felt that no one was worse off than him.