Board Thread:General Discussion/@comment-28776596-20191231175932/@comment-27045866-20191231184228

Your lifespan matches your wife's (including all members of the harem sharing the same life span). If a man married an undead he also becomes effectively immortal also.

World Guide 1:

" the incubi become able to live by sustaining themselves on the monsters' demonic energy Through this, the lifespans of the incubi are also extended to match that of the monster whose demonic energy they use to sustain themselves. "

World Guide 3:

" Furthermore, in the case when an incubus forms a harem of numerous monster wives, mana flows between the incubus and all of the monsters in his harem, growing even bigger. For that reason incubi with harems tend to live longer the bigger their harems are, and all of the monsters in a harem will also end up sharing the same lifespan as the incubus regardless of race. "

Encyclopedia 2:

"Age has never been observed as the cause of death in any of the undead. Undying, they are thought to be virtually immortal. Upon becoming incubi, the lifespans of the undead's husbands are drastically extended to match that of their partners. Such implies that the men, too, become virtually immortal and join the ranks of the undying."

Although he has also said in a Q&A:

4) Can widow monster find new husband?

It is possible, but many of them remain faithful to the memory of their husband, so unless the new husband can truly express his love, and the MG would accept and love him, they will not marry. However, in many cases, the widow will try the necromancy or go to Afterlife.(But in the first place, incubus will not die so easily.) [Note: Curious on this, I asked some more questions. The form of the afterlife isn’t set in stone yet, so there isn’t a really strong image/idea for what it’s like yet. KC has notes, but they’re to be solidified later.]