For the last 10 years, Kim Yongsun has been in a one-sided love situation with her best friend, Moon Byulyi. But, on her 30th birthday dinner, Yongsun has decided to put a stop on it by telling the love of her life that she will move to Japan next month. 

Since the day Wheein told her about a scientific article called, “Should We Believe in Fate? Seven is Your Soulmate Number”, Kim Yongsun has set one purpose in her life: To find her number seven. But what if her number seven turned out to be Moon Byul Yi, her scary and annoying boss?   

Yongsun’s first love story or Byul’s story of teaching Yong how to love.

The big difference between Yongsun and Byul lies in the way they’re living their life. To put it simply, Yong reasoned something with logical thoughts, while Byul determined her action based on her feelings. The older girl loves to plan, while the younger likes to do something impulsive. It applies to many things, including their love life. For a deeper explanation, it could be understood by the action that each of the individuals did at the start of thei