A good brother-sister romance novel

The male protagonist and female protagonist separated when they were young. The female protagonist went abroad and reunited many years later. The ending was that the male protagonist lost his memory in a car accident and the female protagonist died of a terminal illness.
I used to read it, but I forgot what it was called.
It was a reunion in university. The male lead had a girlfriend, but the two of them ended up together by accident. However, many people objected. The male lead's grandmother had beaten the female lead before. Anyway, it was quite brutal. Later, the female lead left, and the male lead inherited the family business. The female protagonist was diagnosed with a terminal illness overseas. She was worried about the male protagonist and came back. The female protagonist endured the illness and was with the male protagonist. The male protagonist had a misunderstanding about the female protagonist's previous departure and did not know that the female protagonist was sick. After an argument, the male protagonist left home and got into a car accident. The female protagonist was admitted to the hospital when she found out about the illness. Later, the male protagonist woke up but lost his memory and was disabled. The female protagonist died. In the end, the male protagonist went to the female protagonist's grave to pay homage. He only knew that she was his sister.

Answer 1

The recommendations for good brother-sister romance novels are as follows:

1 "Why the Silent Flute"
"Flowers are not flowers, fog is not fog"
3 "To our lost youth"
The Blue Gate
You are my glory
"To our youth that will eventually pass away"
7 "How many flowers have fallen in my dream?"
8 "That Year in a Hurry"
My Wonderful Boyfriend
10 "Why Do I Silence?"

The above are some of the classic brother-sister romance novels, the plot twists and turns, beautiful writing, deeply loved by the majority of readers. I hope you like one of them!