My Dearest Mistress

My Dearest Mistress,

It's impossible for a girl and a boy to become a best friend. Why? Coz one of em gonna fall in love with each other. Good grief, she already has a boyfriend. More drama? Her boyfriend cheated on her with her other best friends.

Never once Xi Yeon knows that she would become her own bestfriend's mistress 7 years later.

"Call me daddy."