The story of a female doctor of medicine who travels back to ancient times with her laboratory space and uses medical knowledge to save the world. It is a story about a female protagonist, and a marriage is arranged at the end. The dynasties written in this book are fictional dynasties, and the unreasonable setting of official positions is just for plot needs. Please don't go into details. This is my new book. Readers, please give me your opinions, leave comments, and urge me to update it to make me more motivated. Thank you all.