Yiren and Yoorim used to be so close... glued to the hip even. Despite every obstacle that came their way, Yoorim and Yirens friendship always prevailed and she is led to believe that together, they could fix ANYTHING, so Yoorim didnt understand why Yiren started to ignore her and give her the cold shoulder. But then again, Yoorim has to know that not all things can be fixed.