Board Thread:Spoiler Discussion board/@comment-37211085-20181023122331/@comment-162.192.176.159-20181026163606

When she was born she had infinite magic and both the demon clan and goddess clan wanted her on their side. She told the gods of both clans that the one to give her the best boon will be the clan she joins. After she received boons from both clans. The Demon King gave Merlin secret dark magic from the demon world and immunity from possession/brainwashing from members of the goddess clan The Supreme Deity gave her protection from both the dark arts and the commandments from the Demon clan. Somehow she tricked both the Demon clan and the Goddess clan into letting her keep their boons.

Now as to her race, like yoh said some might think she is a demon or goddess but I think she is a nephilim like Dante from Devil May Cry, a half goddess, half demon hybrid.

Her sin Gluttony could refer to her tricking both the Demon and Goddess clans and keeping both of their boons instead of being content with only one clan's boons, thus showing her greed.