Can you recommend a novel about a younger brother who falls in love with a non-biological sister?

The recommended novel was " I Love You Just Accidentally ". The male and female protagonists were twin brothers. They fell in love with the same girl because of a promise and their first meeting. The girl fell into a dilemma of feelings. However, they later discovered that this agreement that originally only involved two people had become three because they were twin brothers. In the end, they chose to let go. I hope you like my recommendation.

There are many stories in the Egger series that involve a sister falling in love with her brother, but not all stories are of this type. In some storylines, the younger sister and older brother were relatives or the older brother was the younger sister's childhood sweetheart, rather than the direct relationship between the older brother and the younger sister. But no matter what, this kind of plot was quite common in Aige's novels.

Yes, I recommend "My Otaku Loli Sister." Although there was a "sister" in the title, the male protagonist was not the sister's brother, but a suitor. This was a light novel that told the story of a female lead who was a goddess in various anime and manga on Bilibili and her pursuers. Although the male lead was not her brother, their relationship was very sweet. I hope you like this fairy's recommendation. Muah ~😗

😋I strongly recommend "Playing Games With My Sister Because I Spoiled Her Too Much". The big brother in the book is a domineering demon who spoils his sister. In order to prevent his sister from being bullied, he plays games with his sister in the game, while his sister is a timid and gentle character. Although the big brother bullies the little sister on the surface, he is actually secretly spoiling the little sister. It is very consistent with the plot you mentioned. I hope you like this fairy's recommendation. Muah ~😗

I recommend "The Spring of the Brothel." This was an ancient romance novel. It described Tang Mei's first wish after she transmigrated, which was to become single from being married. In the following plot, it showed the story of a brother-sister relationship. I hope you like this fairy's recommendation. Muah ~😗

I don't know of a novel that fits your description perfectly. This type of novel is often called love horror or love restriction. There is a special emotional connection between the male and female protagonists, but they don't allow the female protagonist to date or be in love with others. If the female protagonist breaks this rule, she will face punishment or be trapped in a strange world. Although this kind of novel may be rare, there are some such novels. You can search for the relevant novel title or keywords to find inspiration.

😋I recommend "Paranoid Bamboo Horse Seeking Love Story" to you! This novel was about a paranoid younger brother chasing his sister and falling in love with her. It was a 1v1, and the emotional tone was: secret love + love between siblings + mutual love. Fu Cenglin had wanted to marry his sister since he was young, but his sister, Shen Jinran, only cared about him and didn't give him a chance. However, as she grew older and some silly things happened, Shen Jinran also developed feelings for Fu Cenglin. That's right, a younger brother who fits your requirements very well likes older sister's novel ~ I hope you like this fairy's recommendation, muah ~😗

I recommend " The Beautiful Phoenix Empress " to you. It's an ancient romance novel. The plot of the novel is very similar to the book you described. The female protagonist became the Crown Princess in one day and was later involved in layers of danger, including her pregnancy with her brother's child. Her brother asked her to abort the child, but in the end, her brother proposed to her, and the two of them became lovers. I hope you like my recommendation.😘

The book " Basketball King of Mixed Blood " told the story of a Chinese and Russian mixed-blood who, based on his parents 'strong sports genes and his acquired potential, was on the road to becoming a basketball king. It involved a brother-sister relationship. I hope you like my recommendation.

It was the book, How Can I Not Be Tempted? Ning Suyi and Jing Chi had been friends for generations and were not biological siblings. However, Ning Suyi always treated herself as an elder sister and kept calling her younger brother. On the other hand, Jing Chi missed Ning Suyi and wanted to be her boyfriend. They got together later on, but Ning Suyi always felt guilty and did not like to be called sister. On the other hand, Jing Chi liked this title and would always revert to his old ways. Big Sister."