Saiyuki - Double Barrel Collection (Vol. 1)
Once, demons and man lived together in harmony.  But when a band of demonic forces sought to resurrect a diabolical monster, the demons decided mankind was no longer friend but food.  Now, it's up to a renegade priest, a monkey king, a lecherous water sprite, and sympathetic demon to stop the resurrectuion and return harmony to the dangerous land.