Monster Girl Encyclopedia: The Wailing Moans of a Hunter

My name is Brendon Raziel. Shit name, I know. Adonai Urie was my best friend that could fight and fuck any monster and actually live to tell the tales. Until one day, the Demon Lord killed him while we were on our expedition. I've spent the last eight years preparing myself to fight against the Lord. A Lilim appears with the last copy of the Monster Girl Encyclopedia that only I can understand. I now have everything I need to avenge his death.