YOONGI FF - BROKEN PUZZLE [ Chap.1]

" Broken Puzzle"
Y/N is a very strong and independent girl who work as part timer to afford her sister and herself.
She being dumped by her bestfriend just because of status. Y/N's background family story is not a pleasant to be heard because her parents both died in car accident. So, her life were filled with miserable. When she met a man who was an outsider, that man will heal her "broken heart" by help her to be rich. Y/N need to pretend marry him so she can enjoy her life as a rich girl and make her sister happy. One day, y/n slowly fall in love for that man... and it turn out to be unexpected faith for her and she started to feel that man was previously was nice become a mean one. So? what is that man could be? how could he become angel turn into cold hearted man? Is he really a human?