The Ghost Wife: the National Preceptor, Please Pamper Her Gently

Once she traveled through time, she was the prime minister's legitimate daughter who was bullied. Open your eyes again and fight back tooth for tooth for everyone who bullied them! He is a national master of a great country, with strange skills and good at various spiritual arts. He usually pretends to be weak and incompetent, does not threaten the imperial power, and pretends to be a pig to eat the tiger.