https://www.mangaupdates.com/series.html?id=55710 judging by this picture i think there's high possibility for him to be crow (military training) but maybe it's done to mislead us, i mean he shoud end up with the main good guy xD
A very suspicious reason to enter a prison. I'm watching you Dick and your lower part too.
The sweet mental tortures of trying to figure out the plot!.. there is indeed very interesting and unexpected plottwist... i was so courious and gave up on manga scanlation some time ago and i read the drama cd... just be prepared for something interesting ;)
It would be disheartening if Dick is Crow, but plot twists are plot twists.