Jeongyeon got into a car accident with her wife and forgot everything. After years a doctor named Im Nayeon volunteered to be her personal doctor and said she will help Jeongyeon with her memories.

"Let's have a deal Miss Yoo. If I cannot bring your memory back with in this year, I am willing ti be your slave. But if I can..." Nayeon said conifently.

Jeongyeon smiled sarcastically and looked at Nayeon's eyes. "Then what doctor?"

Nayeon wrote something in her notepad, she gave it to Jeongyeon and left. Jeongyeon left confused as she read the notes.

"You'll be my girlfriend, Be ready! :)"