Her Majesty's Special Effects Makeup

Miss Wu Heyue was an assassin with expertise in special effect makeup. However, she was reincarnated into the body of a Third Miss with a mental disability, hailing from an Ancient Family. Wu Heyue now has to deal with a bunch of goody-two-shoes, family weirdos, the Imperial Prince who loves picking fights, and the scheming brother of the Emperor. She uses her special effect makeup skills to overcome every obstacle before finally sitting on the throne as the Empress!