Hanahaki Disease is a fictional disease where someone begins coughing up flower petals because they have unrequited feelings for someone. The flowers can grow in the stomach, lungs, or heart, though it is traditionally in the lungs. It can only be cured if the person the victim loves loves them back or surgery. This mysterious Cookie's fatal charm can steal hearts with just a mere glimpse. Some Cookies find themselves looking forward to receiving a calling card!