The V*rgin Hero Who Fought in the Dungeon for 20 Years Returned to the Surface Only to Find the Population of the World Has Dropped Drastically, with a Male-to-Female Ratio of 1:1000
Native title: ダンジョンで戦い続けて２０年の童貞勇者、地上に戻ったら人口激減男女比１：１０００の世界だった
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Characters and terminology for The V*rgin Hero Who Fought in the Dungeon for 20 Years Returned to the Surface Only to Find the Population of the World Has Dropped Drastically, with a Male-to-Female Ratio of 1:1000 compiled by OpenNovel users