On the wedding day, the bride-to-be's sister ran away from the wedding, pushing the entire Su family into a desperate situation. The adopted daughter Su Wan, who was regarded as a "transparent person" since she was a child, was forced to wear a wedding dress that did not belong to her and marry into a wealthy family on her sister's behalf.
On the wedding night, her husband Gu Yanchen warned coldly: "Remember, this is just a transaction, don't expect to get my love."
Facing an indifferent husband, a provocative sister, and a family with ulterior motives, Su Wan was walking on thin ice in the huge villa. She originally wanted to keep to herself and play the role of "stand-in", but through repeated collisions and protections, she gradually glimpsed the truth and warmth hidden under the iceberg.
Where will this marriage, which started as a substitution, go in the end? And can she find her own light and warmth in the cold cage?
