CN or KN Novels with an OP/Cold MC. Harem is fine as long as it isn't the main focus and Male MC only. If you're gonna reply "Every CN or KN novel ever......" please get a life and come back when you learn not to be a dick. He doesn't have to be cold, but I would prefer if he was able to make ruthless decisions that would help him in the end. So basically I want someone smart. Thanks!