How You want to "fear" someone on the continent that LITTERALY you can not die on. IT is said like over 9000 Times in game that those monster girls and succubus can NOT harm you ( exept meaby by enslave) This is not your average RPG where you punch stuff to get exp and when you "loose" you get fked to death.
It's fresh and very unique take on boring rpg system.
And to be honest. Succubus are monster that feed on human life essence( or cum or whatever trivia and country you are reading). So for them the fact that they LITTERALY CAN NOT kill a guy is the BEST way, since he can come back and feed them again. You aint killing - People aren't scarry of you- you can roam free around - more man to feed on. Win-Win