Mu Yanxin is born with the ability to see the "emotional colors" of others, which makes her lonelier than anyone else. Until she met Lu Siyan - the man who only had black and white around him.
A contract marriage allows "Rainbow Girl" to live in the world of "Black and White President".
When the first touch of pink spread in his heart, she decided: this year, she would fill his world with color.
Later she realized that when he was cured, she was also cured.
