Who is she?! (Chapter 1)

Irai is a very energetic 25 years old girl. She has a boyfriend named Seok jin but lately he's been very cold and started to ignore her. One day, all of it ended cause Seok jin has a new girlfriend named Min ji . They'll break up by some terms and Irai's heart cancer is getting bigger and worse. Will love bloom again or it'll just become a teary tragedy.