My SSS-Rank Dungeon: Reborn In A Reverse World

After nearly a decade of crafting a chaotic, soul-crushing gacha game filled with captivating waifus, Leon finally sells his creation and sets off to embrace the world outside his screen. But the universe has other plans. A sudden crash and a glowing portal lead him to an unexpected reincarnation in his own game world—a realm teeming with mutated Abyssal beasts and a devastating virus targeting the male population. In this new reality, men are rare and valued assets, ruled by powerful, female-led militaries. Bound to a mysterious SSS-Rank Dungeon that activates during his sleep, Leon’s only goal is to survive and grow stronger. However, each death brings excruciating pain, and the girls he designed are not just charming—they're formidable, capable of feats beyond imagination.