Xu Xiangkui falls from a horse and loses her memory, her memory staying at nineteen, waking up to unexpectedly become the wife of her sworn enemy Shen Yanting. Six years of time blank, she loses her paintbrush, trapped in a seemingly cold wealthy marriage, only the unfinished sunflower painting in the attic's sealed art studio holding the secret completely unknown to her. As the truth is peeled back layer by layer, the deep meaning of the contract marriage, seven years of deeply hidden unrequited love emerge one by one. She picks up her paintbrush again to pursue her dream of art, he learns to respect and walk side by side, the two finally after resolving their knot, falling in love again with an attitude of equality.