Talk:Incubus/@comment-27950421-20181102125449

So, a bit of information I stole off of the folks in MGR and their hard work translating the Sabbath Grimoire.

Apparently spirit energy/mana is directly connected to a being longevity, which is why stronger mamono live for a very long time.

At the same time, sex with monster girls bolsters a mans spirit energy/mana production meaning that not only are Incubi magically stronger than the average man but they also live longer too. This increases with the number of mamono they have sex with as well, so an Incubus with a harem will live longer than a monogamous Incubus and the larger the harem, the longer he'll live.