Succubus Challenge!

Five years have passed since Halberd was transported to another world, and in that time, he has built a formidable reputation. Known throughout the land as the legendary "King of Stamina," his insatiable appetite and mastery of intimate techniques have left countless hostesses completely overwhelmed and desperate for more. Driven by an unrelenting desire, he decides to summon a partner worthy of his skills, expecting a challenge that matches his boundless libido. Instead of a fearsome temptress, the ritual produces a girl who appears entirely ordinary—lacking even the traditional horns or wings associated with demons. However, her unassuming appearance conceals a surprising truth: she is a highly promising rookie recruit from an elite pleasure house staffed entirely by succubi. What follows is a fierce battle of endurance and seduction between two masters of pleasure, each determined to push the other past their breaking point first. In this ultimate contest of stamina and skill, only one question remains: will the seasoned human veteran claim victory, or will the young succubus prove that her hidden talents are enough to conquer the legendary king?