Thank You for Not Marrying Me

There are two kinds of women: one as clear and serene as moonlight, the other as dark and mysterious as a moonless night.

Ning Xia is the former; Ning Xin is the latter.

Her younger sister's online sweetheart becomes her older sister's fiancé. She has a childhood sweetheart, only to discover she's fallen for someone else. Every wedding in the Ning family's trio of siblings ends in chaos.