😋I recommend "The Power of the Imperial Concubine" to you. This ancient romance novel is very suitable for the conditions you have provided. The female protagonist, Ming Han, is the daughter of the imperial censor and married to the hereditary prince, Qi Rong. Their personalities are also very consistent with your needs. The female protagonist is indifferent but scheming, while the male protagonist is extremely shrewd and cruel. There are no real good or bad people. I feel that it will be very suitable for the ancient romance type that you like. I hope it's a novel that you like. Muah ~