To save my seriously ill younger brother, I take the place of my runaway bride of a sister and marry Gu Tingchen, a man rumored to be cruel and sinister. On our wedding night, he tosses me an agreement. “First, we must act like a loving couple in public. Second, don’t entertain any fantasies about me in private. Third, don’t fall in love with me.” I think I can leave unscathed as long as I guard my heart. But day after day of secretly putting on an act reveals the ten-year-long secret crush he’s kept buried, and the woman he’s loved all this time turns out to be me?