Can you recommend a standalone romance novel?

The main character's sister went on a honeymoon, the main character helped his sister take care of the child, and the main character's sister's best friend also came to help take care of the child. In the end, the main character and the main character fell in love with each other because of taking care of the child. Moreover, the younger sister of the male protagonist in this novel was also the female protagonist of another novel. It seemed to be a brother story. They were all written by the same author. His sister's novel seemed to have a sadomasochistic relationship between the male and female leads. I hope that all the great gods can help.
Are there no great gods in the novel world?

Answer 1

I recommend "One-Line Romance." The plot is light and romantic. It's worth watching. I hope you like this fairy's recommendation. Muah ~😗