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I think this might be a shot in the dark but your description reminded me of James Patterson's Maximum Ride, which is about a group of teenagers / children with wings who were kept as genetic experiments. There is also a manga graphic novel version of the book series- could this perhaps be it? :0
Good luck on your search op! :)
Source in PDF form
Here's the manga that it's from
Perhaps Nudge from Maximum Ride's graphic novel animated by NaRae Lee.