I recommend the book, A Wall Apart: Addicted to Addiction. The male protagonist had been adopted by the female protagonist's father since he was young. Although he was arrogant and cold, he truly doted on the female protagonist. At first, the female protagonist did not trust the male protagonist for various reasons, but as the plot unfolded, the two gradually established a deep relationship, and the male protagonist's love for the female protagonist became more and more deeply rooted in the hearts of the people. Although it was a little torturous, the ending was still very sweet. I hope you like my recommendation.π