Thieves and Monster Girls

A fanfiction set in the world of Monster Girl Encyclopedia. Monsters were once humanity's natural enemies, delighting in slaughtering people and feeding on human flesh. This changed when a succubus became the Demon King: all monsters turned into beautiful, adorable monster girls, all female, and their hostility toward humanity became another kind of intense emotion. The conflict between humans and monsters seemed to disappear with this transformation, but things are not so simple. More conflicts flare up as deeper secrets come to light. The story unfolds through the eyes of a noble thief reincarnated with knowledge from another world. "If I can win by playing dirty, I won't fight fair." "I don't have to follow the code of chivalry. I am the code of chivalry." "I don't care about all that high-minded stuff! I'm not an emperor! And I don't want to be one!" "I'm a true-love idealist. You monster girls are not allowed to lust after my pure and spotless body!"