Hanahaki Disease - an illness where the infected cough up petals when they feel they are experiencing one sided love.

You where talking to Miles, having sweet conversation. Then, he started to talk about this new friend he met, Ganke, and the way he talked about him…it made you jealous. You coughed into your hand, and in it where red petals.

“What the-? Did that come out of you?!” He says in shock, looking at you with concern.