Xiao Yu is a father accompanying his son through his final year of high school at a prestigious school. Burdened by financial pressures and the failure of his marriage, he has shut himself off from the world. His life revolves around two things: making sure his son succeeds in the college entrance exam, and carrying out the cold divorce agreement he made with his wife, Lin Wei, to separate after the exam. Their twenty-year marriage fell apart completely when, a few years ago, he secretly concealed 100,000 yuan in debt from her. Though he quietly shouldered every repayment, the breach of trust could never be mended. Yet just as “divorce after the exam” becomes the only countdown in his life, his seemingly resolute wife, Lin Wei, begins to pull him out of the abyss of self-punishment. She watches over him in silence, replying to his messages at once and liking his social media posts. She takes on 98% of their property alone, leaving him just 1%, then suddenly declares, “I don’t want a divorce,” and reveals the truth she has kept hidden all along. Xiao Yu must make an agonizing choice between honoring their agreement and letting her go, or seizing one last chance to win back the woman he loves. Standing between them are years of misunderstandings, real debts, an unfair division of property, three antagonists with agendas of their own, a debt collector, a meddling relative sowing discord, and an old friend with designs on Lin Wei, and their son’s college entrance exam, an “impossible mission” they cannot afford to fail. This is a battle for rebuilding trust, finding redemption, and turning middle-aged love around. Can Xiao Yu resolve all their heartache before the exam ends, and turn their now-obsolete agreement into a new beginning for their love?
