Board Thread:What Would You Do?/@comment-43639928-20191216220430/@comment-37028137-20191217003411

I believe any injury that caused them physical, emotional or mental distress would be healed by Demonic Energy. @ Aro I believe Merse's eye didn't heal because she wanted it to stay broken to remember how awful her mother was; and kept it that was as a reminder to not be like her mother. So I think the Demonic Energy would have healed her eye, she just didn't want to heal it.

https://pastebin.com/HB2iwazd

"Apparently, if I’d really wanted it, I could have fixed that eye when I’d become a monster -- even been able to see with it again. I, however, had wanted to leave that scar as it was. I wanted it as a warning to myself to be the best wife I could to Elt and the best mother I could to our child."

So if you had a debilitating injury or sickness Demonic Energy would certainly heal you. It is mentioned in the Sabbath Grimoire World Guide 3 that the Medical Sabbath would even work without ceasing to find a cure to any injury or ailment even if only one person in the world suffered from it.

https://monstergirlencyclopedia.fandom.com/wiki/Monster_Girl_Encyclopedia_World_Guide_III:_Sabbath_Grimoire#Medical_Cure_.28p121.29

“even if a treatment method isn't currently needed, and even if there's only the slightest possibility that it will ever be used on even one person in the world, it may be possible that a patient needing it will appear, and we should develop a treatment method just for that one person.”

That was a certainly a tangent oh well. To circle back to your question: In Universe Demonic Energy is a Cure All. It can fix anything.

Hope this helps.

Cheers,

The Weary TimeLord.