Yubin is a 29 year old woman. She has a great career but not an equally great life. She's stuck in a toxic and abusive relationship and to escape that, she puts everything she has in her work. After years of abuse she's a totally different woman than she was before, turning friends and family away. Her life changes when she meets Handong. Minji, Yubin's best friend and the company's financial manager, hires the Chinese girl as Yubin's personal assistant. Handong is a 30 year old Chinese woman with a terrible past. But unlike Yubin, her past hasn't changed her. She's a very social and bubbly woman and she will try to survive being the personal assistant of the feared big boss.

Vampires versus hunters. That's the classic thing. Coexistence between these two would be deemed impossible. But what if they had a common goal? What if not all vampires were the same and wanted to bring down an evil vampire clan too? Would Yoohyeon, who was a hunter for her whole life, team up with a vampire like Minji to defeat a common enemy? What if not all vampires were the vile creatures that the hunters thought they were? Sometimes we have to drop our prejudices and maybe, just maybe, the impossible becomes possible... coexistence.

When Yoohyeon breaks up with Yubin because she finds out they are not destined to be soulmates because their timer didn't hit 0 and leaves to America, it breaks Yubin to her core. Luckily Gahyeon, her best friend is there to help and support her. But what happens if she meets the girl she loved 5 years later and that this time... the fates say something else. Their love never faded, but will their wound heal?