Phil (a 32-year-old virgin), a former hero who defeated the Demon King, has a hardcore fetish for non-humans. When he was a hero, he lived his life by hiding his sexual tendencies because of his position, but when he ran out of savings and started a second life as an adventurer, in his first request, he said, ``If I lose to an erotic monster, it will be legally erotic.'' "Maybe I can do something for you?" Thus, in order to face erotic experiences from the non-human girls, Phil begins to work as an adventurer ``to lose'', but even if he is rotten, the power of the former hero will not allow him to lose...! ?