Angels

Some lifeforms originated from the source of lifeform which is called "Lilith". It could be any size or shape: a big octahedral, a form as small as the size of bacteria, or even a shadow which has no tangible form. Borrowing the words from Fuyutsuki's dialogue in ep.26, it seems that "Angels" got the "Fruit of Life" whereas human got the "Fruit of Intelligence". It can be said that "Angels" is just another form of human, with the same probability of appearance as human. Human is thus the 18th Angel

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