According to the information provided, I recommend the ancient romance novel,"Peach Blossom Parting". The male lead had a simple and honest little brother who grew up together with him, a modest gentleman who was as gentle as jade, a black-bellied and domineering vindictive enemy, and a cold-faced and warm-hearted young man. They were all gentle male leads. I hope you like this fairy's recommendation. Muah ~๐