An ordinary designer was mistaken for the illegitimate daughter of a wealthy family and was forced to sign a three-month fake marriage contract with a cold-faced CEO just to save her mother's medical expenses. She used creativity to reverse the company's crisis, but he secretly handed her hot soup while she stayed up late revising the draft. Their true love quietly grew, and her ex-girlfriend suddenly returned to China to reveal her identity, and the engagement contract in his hand had long been covered in ink and became a true contract.