He is her childhood sweetheart whom she has had a crush on for many years to no avail. She is the piece of sweetness in his heart that is difficult to let go of. She has a crush on him based on the theory that girls should be reserved because of her self-esteem issues. Of course, it was him who confessed to her because he couldn't help it. Li Ziming: If you have been secretly in love with someone for eighteen years, try it. Gu Xin: So you have been secretly in love with me for so long? ! What a coincidence, so am I.