Shen Qingwei, heiress to the wealthy Shen family of the imperial capital, makes a bet with her childhood friend Gu Beichen: can she pretend to be a slum girl and make the arrogant campus heartthrob Xu Moyan fall in love with the real her? For three years, she plays the lowly, lovesick dog, bringing him breakfast, buying him medicine, and staying at his beck and call around the clock. All she gets in return is her 1,081st public humiliation. On New Year's Eve, she tosses out the words "Game over" and walks away, reclaiming her identity as a top socialite. When Xu Moyan learns the truth, he regrets everything. He joins forces with the villainess Su Yurou, now gone dark, to seek revenge at Shen Qingwei and Gu Beichen's wedding of the century. But he has no idea he has already fallen into the counterattack trap she carefully laid. This is a game of disguise that began with a bet and ends in true love, a tale of revenge among the wealthy. When every mask comes off, who will be the last one standing?