Lin Mumu sees through her boyfriend Zhang Hao's true nature: he disguises his stinginess and scheming as honesty and simplicity. Faced with the Zhang family's insulting 200-yuan bride price and her future mother-in-law's constant provocations, she cleverly fights back and decisively breaks up with him. Zhang Hao tries to use a mediation court to demand reimbursement for his dating expenses, but Lin Mumu countersues with a detailed record of every transaction and successfully recovers more than 300,000 yuan in unpaid debts. After losing the case, Zhang Hao seeks revenge by setting a fire, but ultimately ends up behind bars. Lin Mumu finally frees herself from this terrible man and begins a brand-new life.