The Ultimate Clan, I Lead the Era

The Five Surnames and Seven Great Clans: Marriages Between Aristocratic Families

I want stories about the love and hate among powerful aristocratic clans: the Five Surnames and Seven Great Clans, who only marry into other great clans and don't take the imperial family seriously. Don't recommend those useless stories where the Five Surnames and Seven Great Clans are wiped out in a single stroke. The clans the imperial family fears should be as impossible to stamp out as cockroaches.