Roommate Shen Jingbing felt that Liu Ruyan had little living expenses and was afraid of being taken advantage of, so she forced her to bind her to the dormitory AA system. The system fairly accounts for costs, allocates sanitation tasks, and imposes fines for violations. Shen Jingbing tried to take advantage many times by being clever, but was deducted money by the system one after another. Unwilling to be reconciled, she intensified her efforts, stealing snacks and bossing around Liu Ruyan, but was repeatedly punished by the system. Later, Shen Jingbing's mother came to make trouble and accidentally revealed her secret. Will Shen Jingbing eventually suffer the consequences? Can Liu Ruyan successfully unbind the system and get rid of the weird roommate?