Palace and Household Intrigue with Smart Characters! Rated 9.5 or Higher!

Looking for something like Zhaohua's Chaos. Rated 9.5 or higher! The female lead should be a concubine's daughter who gradually rises from a low rank, or works her way up in the prince's household. She should be clear-headed, have no love for the emperor or prince, be ambitious, ruthless, and quick to avenge herself. And she has to be smart, smart, smart! She pretends to be a pushover and then...