Fallen

Fallen (堕天族) are the result of Seraphim that have been corrupted by Magicules and fallen from grace.

Appearance
Fallen retain all the same physical characteristics they had as angels but their wings become darkened and shift from white to black.

Abilities
Fallen retain all of the power and abilities they had as angels and could even be considered stronger due to their increased reserves of magicules. The trade off is that they've lost their status as holy beings and become demonic/magical in nature. Their new nature makes them somewhat susceptible to holy-type attacks that they were previously immune to and can thus be considered their greatest weakness.