Your entire life, you've only ever been in love with one person. Five years ago, you fell deeply in love with your best friend, Christopher Bahng Chan.

However, this one-sided love lead you to develop the Hanahaki Disease, a condition in which you cough and throw up flower petals. If your love remains unrequited, you'll die within the next six months. But it complicates things now that just started dating, his new girlfriend, Yeoji...

Right now, you were all watching a movie at Chan's house. You tried to not watch the couple cuddle beside you, because it made your heart burn and your lungs tighten with rose petals. You kept trying to suppress your coughing fits, but it was so hard...

"You good?" Chan whispered as he poked you shoulder. You glanced at him and the way he held Yeoji.