I recommend the book,"Loving CEO: Ultimate Love". The male protagonist is clean, infatuated, and black-bellied. The female protagonist is also very powerful. They had known each other since university, and the male lead had been pursuing the female lead in order to win her favor. However, the female protagonist had always been cold to him. It was only after a misunderstanding that they got together. The male protagonist was calm and decisive on the outside, but he doted on the female protagonist. They were definitely a pair of 1-on-1 couples who were clean and super doted on. I hope you like this fairy's recommendation. Muah ~😗