Kyosei Tensei

Convicted for the brutal slaughter of the fifteen men who assaulted his girlfriend, Anezaki Satoru stands on the precipice of his own execution, his heart seething with a conviction that has long since curdled into absolute misanthropy: all men are irredeemable filth. Yet just as the noose tightens around his fate, death does not grant him an ending—it hurls him into a terrifyingly familiar world that exists as a dark mirror of his own. Here, a catastrophic solar flare has scorched the earth and ravaged the human genome, specifically targeting the male population. The radiation has not killed them, but has instead scorched away their higher cognition, reducing every surviving man to a primal, monstrous state where only a single, predatory impulse remains. Awakening in this broken parallel universe, Satoru finds himself surrounded by a society on the brink of collapse, where women live in constant terror and men roam as little more than feral beasts driven by an insatiable urge to rape. Stripped of his former life yet carrying the burning hatred that defined his final days, he must now navigate a world that seems to validate his every dark belief about his own gender. But in a reality where humanity's worst instincts have become the biological norm, his journey is no longer simply about vengeance—it is a harrowing confrontation with the very definition of evil, forcing him to question whether his murderous past makes him any different from the mindless horrors that now stalk the ruins of civilization.