Su Man falsely accuses the hearing-impaired Grandpa Wen of secretly photographing her on the subway. Zhang Yan analyzes it frame by frame and discovers three flaws involving the camera position, earrings, and station broadcast sound. Retired teacher Li Huilan provides platform rehearsal materials, and subway surveillance proves his innocence. "She Rehearsed Three Times" goes online, and 87 accounts of Xingchao Culture are banned. Grandpa Wen's chicken soup stand becomes a hit, Su Man goes to work in a garment factory, Wen Yang writes the paper "The Rules of Traffic," and the platform establishes a fact-checking center.