Monmusu Quest! Zenshou ~Makereba Youjo ni Okasareru~
Original title: もんむす・くえすと!前章 ～負ければ妖女に犯される～
In a world where monsters take the forms of women who lust after a substance only men can give them, one boy is fated to change everything forever. And to continuously get raped doing so.The plot starts when Luka, hero of this story, has a dream of the goddess Ilias who commands him to take up arms, become a hero worthy of her and slay the Monster Lord whose legions of monster girls attack humans everywhere.