It was a mistake, and Minatozaki Sana doesn't make mistakes, or at least she wasn't supposed to because of her status in life. She got to live up to everyone's expectations and she can't believe she let herself get tangled in the mess that Kim Dahyun is. Sana has Dahyun figured out, or that's what she tells herself. Until her life turned upside down after one reckless night ended up with her becoming the new Mrs. Kim. She's then forced to reconsider everything that she thought she knew about Kim Dahyun.