Manwhore??? cheater??? are you referring to this story "Miscreants and Mayhem"???
If so, let me ask one question, how the hell did you read it?? your eyes, brain, or by your ass??? I can tell that you've read it by your asshole, not even a proper ass!!
Manwhore?? Bitch please, there's no one as pure as Nanmu, he was a straight guy fell in love with a women, He had to endure that fucking punishment for the sake of that woman and her son ( Pil-gyun). he never had sex with men before. it was a unfair fucking punishment.
and cheat?? when did he cheat?? he was doing his punishment faithfully to his father because he was tamed to, Jeol-ho was the one who took advantage of his weakness, That's all and they were together since the beginning, Nanmu was just significantly delayed.
Well uke is just as he says that he is a Manwhore.. and just cheats everytime seme is away..
I really hoped that this will not end up as a happy ending for uke and seme to deserve a LOYAL partner as he is.. but cheating is kinda normalised here coz he is obsessed with him so it was kinda bleh for me..