From Dark Horse:
With a worldwide war raging between humans and monsters, the young delivery men of the Gaya Desert Post Office do not pledge allegiance to any country or king. They are banded together by a pledge to deliver. Fast. Precise. Secure. Banya, the craziest and craftiest of the bunch, will stop at nothing to get a job done. Known as the Explosive Delivery Man for his risk taking, bold resolve, and impeccable record, Banya agrees to complete a wounded soldier's mission to transport a parcel of great importance--not knowing what dangers lie in store for him and his friends! As their arduous journey begins, Banya promises, "There isn't a delivery I can't make. I always deliver."