The Princess Royal S01 E30 Decisive Actions

Consort Rou is in charge of investigating the examination fraud case. She's in trouble as the noble families make things difficult for her. Li Ming suggests her to use Pei Wen Xuan. Pei Wen Xuan acts as if he's loyal to the emperor. Consort Rou is happy with his performance. She has no idea that Pei Wen Xuan has ulterior motives.