Watch Equation of Attraction Episode 4 Online for Free

On their wedding day, Eldest Marshal Yan Changye's wife, Liu Xiyin, witnesses a meticulously planned exposé. The Third Mistress publicly plays a phonograph recording, revealing the truth: cousin Song Shiyun, consumed by jealousy over her unrequited love for Yan Changye, seduced and caused the Third Young Marshal Ayue to fall and injure himself. Faced with irrefutable evidence, Song Shiyun's defiance turns to desperate pleas for mercy. Marshal Yan entrusts the decision to Liu Xiyin, who artfully deflects the responsibility back to the victim's mother, the Third Mistress. Ultimately, Yan Changye, on behalf of his father, announces the brutal punishment of "a leg for a leg," pushing Song Shiyun into despair.