Which time-travel novels met the following conditions: the female protagonist was older than the male protagonist, the younger brother liked the older sister, and the content was that the female protagonist had an intersection with the younger brother after transmigrating to a girl?

[Find a Time Travel novel] The female protagonist is older than the male protagonist, and the younger brother likes the older sister.
The content was that the female protagonist had just transmigrated into a girl's body. She and her brother saw that their family was destroyed, leaving only her and her brother to escape. Then, the two of them depended on each other, and the younger brother slowly fell in love with the female protagonist. Later, they became servants and moved into the male protagonist's house. The younger brother seemed to be the male protagonist's study partner. The male lead's surname seemed to be Shen, and he was about the same age as the female lead's younger brother. However, the male lead and his brother might not like each other very much because of the female lead.
When they grew up, the female and male leads were forced to escape together for some reason, and the two of them relied on each other. At that time, his younger brother was nowhere to be found. It seemed that he was planning to avenge the family and become the emperor behind the female protagonist's back.
Later, the female protagonist seemed to have overheard the conversation between her brother and the abbot in the temple and learned her brother's secret. She felt sorry for her brother and felt guilty for not knowing his pain.
In the end, there were two outcomes.
The first was when the female protagonist was pulled by her brother by the cliff when she fell off the cliff. However, in order not to implicate her injured brother, the female protagonist pulled off his hand and chose to fall off the cliff herself. Fortunately, the male protagonist saved her from below. Then, although the two of them took a boat to another place, the female protagonist could not let go of her brother. After his brother woke up, he found out that the female protagonist was not dead and became the emperor. He had always been worried about the female protagonist.
The other ending was that although the female lead was saved by the male lead, she eventually died and returned to the modern world. Also, in order to not let her brother be sad, the female protagonist asked the male master to put the female protagonist's things by the cliff to lie to her brother that the female protagonist was fine and had been saved, so that he could rest assured. I remember that when the female protagonist woke up in modern times, there were two black and white cats beside her. They might symbolize the male protagonist and his younger brother.
I've been looking for the title for a long time, but I can't find it.

Answer 1

According to your needs, I strongly recommend the book "Mr. Lin is My Little Milk Dog" to you. The female protagonist and her brother grew up together and had a very good relationship. The younger brother also liked the older sister. After the female protagonist transmigrated into a girl's body, she still maintained an intimate relationship with her younger brother. I hope you like this fairy's recommendation. Muah ~😗