Board Thread:General Discussion/@comment-25439108-20140925090812/@comment-29602226-20170627174033

Monster girls, even Succubi and other Spermivores can survive on normal food if they lack a man's Spirit Energy. They won't grow in power, they will just keep on living, but they won't die.

Kenkou Cross has said that a Mamono whose husband dies will try to resurrect him as an Undead Incubus, or go search his soul in the Afterlife.

If nothing else works, she will remain a widow the rest of her life, unless a man works really, really, really hard to convince her to give him a chance to prove himself... And few men will bother working so hard, when there are many other Mamono who will jump his bones with no effort at all from his part...