Guide to being a Monster Fucker

Rennalak, a young man looking to be a monster slayer, is tasked with a mission. Hunt down the monsters in the city of Kinarlix. He goes with the other monsters hunters, and is willing to fight whatever it is. But when he finds the monsters, he realizes that instead of being fearful of them... He seems more... Aroused. And when a Willow O' Wisp foretells a hunter to tame the monster goddess, Alandrea. The monsters must teach Rennalak how to tame a monster... which means so much more than he thought.