I'm Terribly Sorry, But The 10th Adventure Log Seems to Have Disappeared

"There's a succubus brothel in our town!" Thus the boys invite the hero Lucile to follow them. Men who taste a succubus' demonic pleasure can no longer breed with humans, which will lead to the extinction of the species. Lucile has to do something about this threat! He's blessed with constant regeneration and immunity to one-hit death attacks. He earned the title of Mightiest after managing to kill even dragons... Surely he won't lose to a bunch of low-rank monsters like succubi. Yes, he'll infiltrate the succubus brothel... To save the world, of course!