Kimomen demo Kyokon nara Mizugi Gal to Riajuu na Natsu ga Sugoseru!

Have you ever watched those impossibly vibrant commercials for tropical beach vacations, where every person is flawless and smiling, and thought to yourself that you would visit if such a place actually existed? In this story, that idealized paradise is reality. Set in the near future, society has undergone a drastic biological shift: male anatomy and purpose have diminished to minuscule proportions, driving the global birthrate to dangerously low levels. As civilization teeters on the edge of collapse, everything ultimately comes down to one invaluable asset—possessing an exceptionally large endowment. In this new world order, men blessed with extraordinary size are revered by a female-dominated society desperate for fulfillment. The setting transforms into a perpetual summer resort where stunning women in bikinis eagerly await the attention of these highly prized individuals. What was once nothing more than a fantasy sold through exaggerated advertisements has become the protagonist's everyday life, offering him an endless, fulfilling summer surrounded by eager companions who worship his unique advantage.