The story begins with a contract marriage. The heroine Su Wan (gentle, innocent, quiet) signed an agreement with the hero Qin Moshen (genius, elite, modest gentleman) in order to preserve the gallery left by her parents and carrying childhood memories. Qin Mo Shen appears to be cold and business-like, but in fact he is a childhood sweetheart who has been secretly in love with Su Wan for many years. After being forced to separate due to family changes, he now re-enters her life with a strong attitude and uses a "contract" to keep her by his side. The two started a cohabitation life of "marriage first, love later", from awkward and alienated to increasingly warm and cozy. In the name of "fulfilling the contract", Qin Moshen "dotes on his wife to excess", arranges romantic dates, solves the crisis in the gallery, and silently fights off harassers, causing Su Wan to gradually fall into decline. However, Qin Mo Shen's college friend and business partner Gu Ze (hypocrite, resourceful, revengeful) surfaced. Gu Ze had resented Qin Mo Shen for many years due to family grudges. On the surface, he was a gentle and gentle helper, but in fact, he was secretly planning to use Su Wan's innocence and past (the brother next door she once regarded as her elder brother) to create misunderstandings and sow discord. When Su Wan learned the "truth" about the marriage in the middle (part of it was Gu Ze's twisted truth) and mistakenly believed that Qin Mo Shen was only controlling and giving charity, she was heartbroken and chose to leave, leading to the "broken mirror" plot. Later, as they were separated and growing up, Qin Moshen no longer held back and pursued his wife straight away. Su Wan relied on her talent and tenacity to gain a foothold in her career, and gradually discovered Gu Ze's conspiracy and the love Qin Mo had buried for many years. In the end, the two of them joined forces to thwart Gu Ze's revenge plan with wisdom and true love, untie all the knots in their hearts, and transform from a contracted couple into a true soul-matching lover.