"Momo", Sana called her cousin's name, her head throbbed in pain and she began panicking, "Who's that girl screaming my name and calling me her," The ridiculousness of the word got stuck in her throat but she continued on, "wife?" Momo's pained expression was visible to Sana as Irene, the doctor in charge, sighed loudly because she knew that this is one of the possible results of the accident. "That girl's name is Dahyun, Sana." Momo explained to her gently. "And yes, you're her wife." She can't remember anyone named Dahyun and Sana doesn't know if she'll laugh or cry at this cruel joke.

Sana disguised herself as a staff in the Marketing department because of a certain pale girl who is a manager there, Dahyun. Dahyun however was crushing on her boss, Mina. Little did Dahyun know that she was supervising her future boss.

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.