The Tower of Whispers Episode 4

Ying Ying fears that bringing Jun Che back is inviting a wolf into the house and is about to send him away when Yan Hui recognizes Jun Che's identity as a citizen of Yue State and interrogates him. As the three are in a standoff, the hypocritical younger sister of Lu Ying Ying's mother pays a visit. Lu Ying Ying sees through her insincerity and exposes her hypocrisy on the spot, embarrassing her. Ding Huai Ren also visits after being acquitted with the help of Consort Yun. Lu Ying Ying catches her aunt and Ding Huai Ren having an affair in a carriage at the back gate. To get revenge on the two and stop their collusion to harm the Lu family, Lu Ying Ying orders Jun Che to create an "accident"—breaking the reins of Ding Huai Ren's carriage in the middle of the street. The carriage overturns, and the disheveled Ding Huai Ren and the aunt are awkwardly exposed to the public eye, making a spectacle of themselves and becoming the laughingstock of the entire capital. (Source: iQIYI)