Hanahaki Disease au You are an idol and a popular one too. Your fans love you, but there is something they don't know about you. that no one knows about you.. It is the fact that you have the Hanahaki Disease. The cause of the disease is that the victim suffers from a one-sided love. The victim coughs out flower petals and is only cured if their beloved returns their feelings. You have it because of Jungkook who is also an idol and loves someone else. You cough out purple petals.