The unforgiven love

So the story starts with our jin yang who is running late for school again and misses the bus but then a black car stops and a man walks out and says our young master demanded to drop u off because he goes to the same school and it wouldn't hurt to give you a ride so our jin yang steps in and see a handsome young boy in the car she couldn't take her eyes off of him and when they arrive at school she she's a girl came to him and hugged him she thought that she was his girl friend and then the story shifts to the present where she works at jin hit entertainment (yes I am talking about jin from bts)any way back to the story she is an average p r team manager and she is married her life was just passing by until she found out she has cancer and the doctor said would live up to 6 months only 12 months at most if a miracle happens she was admitted to the hospital where she realised her husband was cheating on her but she thought her sister was with her but what she didn't knew was