Jiang Mian, a villain in the capital, was infamous for tearing apart her scumbag ex-fiancé. When she was twenty, she was married off to Lin Xiangyi, the dandy prince of the Duke's palace, by her family who was eager to get rid of her. The two seem to be incompatible, but in fact they reach a secret agreement to jointly deal with the revenge of difficult relatives, hidden informants and former enemies. As undercurrents such as the palace conspiracy and the prince's influence emerge, this pair of "evil girl and dandy", while testing and protecting each other, find a unique way to protect themselves and others in the chess game of troubled times.