Okay well tell me how this sounds, sorry had to get off. Someone made me angry on here. Needed to cool down)
C1 is attending a collage for winged creatures in hopes of he/she's wings to finially appear. There are four types of wings: Dark wings, Gold wings, White wings, and Silver wings. This is how people are grouped up, it's also according to their abilities. There color of wings have many cool and interesting powers, but everyones are different.
C2 is has Dark wings, he/she have been at the school since they where born. They have a dark past that they have never discussed with anyone else, until C1 comes along. They share a deeper bond with each other but C2 has no idea what he/she is getting them self into when they meet C1. How will their future be effected by their choice? Only time will tell.
This is bad but it's the best I got lol. Hope it's good enough to start with.