**For a long time humans and succubi have always been against each other, due to the succubi’s ability of being able to wring out the life force of a man through sexual acts it made things hard to send in men to fight them off whenever they would invade a city, not to mention that they can also easily disguise themselves as any average woman. It’s only been recently when humans and succubi have finally been able to live together peacefully, however you still often hear about how a succubus can lose control and accidentally suck the life out of the man they are together with.**
**While these cases are accidental there are still, of course, some succubi who go out of their way to purposefully suck the life out of someone**