User blog comment:DeathGodPrayer/Talk About What You Want!/@comment-50.11.177.49-20121004041126/@comment-115.133.201.109-20121004084655

Its quite hard to tell since Grayfia is a Devil that has Satan-class powers and she was a candidate for the Leviathan spot. She gave up that spot to Serafall since her husband became the Satan Lucifer.