Childhood Sweetheart, Lover

Naturally two-faced younger straight-laced hottie top X descended-from-heaven beauty, long-haired and cold-faced cutie

Su Pingyu and Le Canxi slept together.

Le Canxi: "Brother Pingyu, I know I'm immature, and you don't like me. After all, when I was four, I wanted to have a wedding with you, and you refused. When I kissed you at fifteen, you ignored me for ages. So even though we did it five times yesterday, I expected you not to admit you had feelings for me. It's okay. My father and yours taught me from childhood that you have to shamelessly cling to the person you want to marry. I don't mind losing a little face. Am I your wife or not? Say something, wifey."

Su Pingyu: "I want to die."

*The blurb may change, but the core trope won't: childhood friends become lovers.

*Two children raised in love, and their summer romance from NYC to Italy and then London.

Theme: True love is there from the start.