Teisou Gyakuten Sekai de Yuiitsu no Otoko Kishi no Ore, Onna Kishi Gakuen ni Nyuugaku Shitara Nazeka Eiyou Atsukai Sareta: Zetsurin Skill de Harem Musou

In a matriarchal world where women dominate and men are treated as lesser beings, Kureto was cast aside at birth for the sin of being born male. He scraped by as an orphan, unwanted and powerless—until the day his unique skill awakened. A “supreme virility” skill that strengthens him with every a...

Source: MyAnimeList