Travel to Another World and Become a Queen

A fat senior student from the medical school who was nicknamed "The First Surgeon in Anatomy", had a cheerful personality and was loved by everyone. She accidentally slipped and fell down the stairs. She thought she was going to die. When she opened her eyes again, she found that she had been reborn as a young lady from a large family. But this girl is a child of a maternal and fetal disease whose biological father doesn't care for her and whose little mothers don't love her. She has to breathe for a long time even after getting out of bed. Unfortunately, she did not meet a domineering emperor who fell in love with her, but instead found herself in troubled times. From being submissive and cautious, to being firm-willed and thoughtful, to being sinister and clever, he strives to stabilize the world step by step. The little girl eventually became a powerful phoenix.