Hangover

A village locked in a turbulent location has hell thriving; monsters attacking them from every which direction. With the help of one such monster, they hope to combat these nearby titans and live in peace. But keeping the beast subjugated is it's own problem. Enter Yuichiro, a villager tasked with looking over the oni for the night, but what becomes of their aggressive protector soon shocks him.

NSFW comic with a lot of buff buttsex.