Gu Zheng's family, having just moved into a school district housing, encounters malicious door-blocking and floor-shaking harassment from upstairs neighbor He Guifang on their very first day of moving in. Facing unreasonable demands to sell the house at a low price and intentional noise harassment, Gu Zheng maintains rationality throughout, preserves evidence, seeks property management intervention, and firmly guards the peaceful life of his family. This also verifies the basic principles of neighborly relations: keep boundaries, speak of civility, and reasonable rights protection is the confidence of peaceful living.