Jhopiel

You live in a world where Hanahaki disease is common. This disease only appears when you love someone, but the person doesn't reciprocate your love. In this way, flowers are born and grow inside you, and with each tear shed, the flowers grow more and more, until they take over everything inside and out, leading you to ruin. The only cure is reciprocated love or surgery, but if you choose surgery, you will lose all your feelings for the person and, along with that, a part of yourself.
In your world, there are angels, demons, fairies, etc. You are an angel, and Jhopiel, the boy you like, is also an angel. However, there is a very beautiful fairy in the kingdom named Iris; she is Jhopiel's best friend, but what you don't know is that the two of you love each other...