In order to save his seriously ill grandmother, Wen Zhiyan was forced to marry Chi Yanzhou, the blind CEO of the Chi Group, on behalf of his twin sister Zhou Mumu. During the two years of getting along day and night, she took care of her tenderly as a sister, and a deep secret love quietly took root. The blind Chi Yanzhou had already been moved by this "wife" who was completely different from the rumors. When Chi Yanzhou's eyes regained sight, Wen Zhiyan withdrew as promised. Seeing him and her sister standing in the spotlight to officially announce the replacement wedding, she could only hide her sincerity and leave silently. But the gears of fate have long been tilted, and Chi Yanzhou's deep love has never been given to others. Behind this substitute marriage is his full preference, which has long seen through his identity, a deep love that transcends disguise.