Myoui Mina is the heiress of a prestigious Japanese family. She not only grew up surrounded by luxury and wealth, but also by shallow people who never showed her any warmth. On a fateful Christmas night, she stumbles upon a girl whose smile seemed to shine brighter than all of the lights that surrounded them.

Wedding days are usually synonymous to joy and happiness. But when Im Nayeon finds the love of her life marrying another person, it becomes the exact opposite. Realizing this is her last chance, she has a choice. Speak now or forever hold your peace?