I recommend the ancient romance novel " Tea Zhenlu " to you. Although the male protagonist was not an emperor but a divine beast, Qilin, the female protagonist also had congenital heart disease. The two of them accompanied each other in an environment of life and death. They experienced many twists and turns and finally got married. I hope you will like this novel.
I recommend "The Queen of the Comic World" to you. The female protagonist of this novel, Ouyang Tiantian, has congenital heart disease. Unfortunately, she was hit by a car on the road and had a heart attack. Then, the King of Hell gave her another chance to live and made her the goddess of the comics industry. This is a doujinshi derivative novel that has traveled to a different anime world. It's worth reading. I hope you like this fairy's recommendation. Muah ~π
The book "Reborn Wife: The God-level Big Boss Is Terrible" might meet your needs! The female lead, Su Qingnuan, had a heart attack after transmigrating, and the male lead, Jin Yi, was a doctor. This book is a modern romance novel. It tells the story of the female protagonist's counterattack after her rebirth. Although the male protagonist is a big shot, he is very bad. The love line is also very exciting. I recommend it to you! I hope you like this fairy's recommendation. Muah ~π
The female protagonist was abandoned due to congenital heart disease. After her rebirth, she protected her family and friends and walked on the cusp of the storm. I hope you like this fairy's recommendation. Muah ~π
The female protagonist had a heart attack while the male protagonist was blind. Later, the female protagonist cured the male protagonist's heart attack. After the two of them reunited, they began a torturous love journey. I hope you like this fairy's recommendation. Muah ~π
There was! I recommend you a novel called "The President Is Addicted". The female protagonist suffers from a heart attack, while the male protagonist is her savior after losing her sight. The relationship between the two gradually warms up. This novel was a modern romance novel written by the author, Hanning. I hope you like this fairy's recommendation. Muah ~π
There was a novel where the male protagonist had congenital heart disease called "The Journey Begins from the Soldiers 'Assault". I recommend some novels about military life, such as Military Marriage, Cold General's Wife, Please Kneel, etc. I hope you like this fairy's recommendation. Muah ~π
I recommend "The President Is Addicted", a romantic youth-love novel. The male protagonist took the female protagonist for himself after a night of drunkenness. The female protagonist later helped the male protagonist treat his heart disease, and the two of them were inseparable. I hope you like this fairy's recommendation. Muah ~π
The male lead, Su Nanzhi, had a heart disease. I hope you like this fairy's recommendation. Muah ~π
I recommend a book called "Medicine Doctor Lady". This is an ancient romance novel. The female lead was a fake doctor who relied on the medical system. She happened to cure the male lead's strange illness, and their relationship gradually warmed up. I hope you like my recommendation. Muah ~
I recommend a novel to you. It's called "The Nation's Cute Baby: Stealing Mommy Buy One Get Two Free." Although it was a romance novel, there was also a plot where the female protagonist had a heart attack and her first love was a scumbag. I hope you like this fairy's recommendation. Muah ~π