Upstairs neighbors, Wu Huifen and her husband, demanded that Shen Yueyue split the underfloor heating fee right off the bat. Young Miss Shen has a good temper, but she is no pushover. She throws the bill right back, explains the reasoning clearly, and leaves out nothing—surveillance footage, recordings, and contracts—tearing down their tricks step by step. The neighbors all see it in their eyes; some pitch in to help, some watch from the sidelines, and some want to smooth things over to keep the peace. But the odious neighbors push their luck, taking turns splashing paint, blocking the door, and spreading rumors. Shen Yueyue doesn't quarrel or make a fuss; she speaks with rules and evidence, making the neighbors see clearly who is being unreasonable and making a scene. In the end, all the wicked neighbors' tricks fail utterly, and they slink away to move out of the residential complex, bringing peace and lively warmth back to the hallway.