Katsute kami datta kemonotachi e manga

Katsute Kami Datta Kemonotachi e summary:

In war, men become beasts. War makes gods out of beasts. When war ends... where do the gods go? Where can they rest their weary heads? Wolves walk the forest of despair, the wasteland of lamentation, the sea of bitterness, in the time of dark and light. To kill those that were once their friends.