Succubus Order ～An Adventurer Who Gets His Semen Milked Relentlessly by Both Enemies and Allies～

The protagonist lived a modest daily life together with his younger sister, Haruka. But one day, Haruka suddenly transforms into a succubus, tells him, "It's a game of tag," and vanishes from sight. Thus begins an adventure at a succubus-hunting guild, all to reclaim his sister. However, the world has now fallen into a state of broken gender ratios, with succubi in abundance. It is a world far too cruel for men. He gets milked at the guild, milked by female criminals, milked by succubi... In this harsh world where defeat equals immediate reverse rape, can the protagonist ever find his sister Haruka!?​