Bungo and Alchemist -Gears of Judgement-

That man stood up. He attempts to purify "Cogwheels", that was being tainted in the decaying library engulfed in fire. The souls of his friends perished, and the only one left was that man, all alone. But still, could the feelings of the man who hadn't given up save his friends...? (Source: Bungou to Alchemist Wiki)