Pointless regret.

Regretting something after you did it without thinking it through all the way with consequences is pointless.
And it is also something Yami does every time he's bashed Rayle around. Seeing as he was (in my story) the leader of Einsatzgruppe A, old habits die hard.
Rayle sits on the side trying to hold in his cries, but Yami is well aware of him crying from the shivering, and unfortunately he doesn't realize the gravity of the situation after he's done it, but then it's too late to do anything about it.

Oh wow this was a depressive photo, I have NO idea what inspired me to draw it but .. I also thought you needed a little back story to get the vibes from it c:
This is partly the reason I did it in only grey (mostly except for the wounds and Yami's eyes)

Enjoy ~