It's a tunisian folktake called "seven maidens". her 6 older sisters are eaten by a ghoul in human form who claimed to be their aunt. she escapes to a forest though where a snake sympathizes with her story and raises her for years.
until she meets prince charming of course who was eavesdropping on her taunting a bully goat that she'll totally marry the prince and they'll have her on their wedding meal. She was just being an asshole to the goat but i guess it was love at first weird encounter.
nah this is an entirely different angel whose entire job is carrying Bahamut lol. I don't know his specific name sadly.