Zhou Yu is publicly summoned by his girlfriend, Ke Man, to pay the bill at a Japanese restaurant, only to catch her sharing a straw with her so-called "guy best friend," Deng Jiaming. After decisively breaking up with her, Zhou Yu unlinks his supplementary payment card, only to discover that the money Deng Jiaming used to treat Ke Man actually belonged to his real girlfriend, Xu Tang. The two unfortunate souls who have been treated as walking ATMs decide to join forces. Under a thirty-day "fake couple" agreement, they strike back hard against the shameless pair who have no sense of boundaries. From paying other people's bills to learning to take responsibility for their own lives, this is not just a satisfying revenge against a scumbag and his manipulative girlfriend, but also a journey of mutual redemption about self-worth and independence.