Black Raja (ブラックラジャー, Burakku Rajā)? is a demon in the series.
A Raja is a title for a monarch or princely ruler in India.
Devil Children Red/Black BookEdit
"It lost its heart thanks to a demon's curse. The Expanse's greatest axe-wielder."
Black Raja can be found in Forest Land's wetlands.
Devil Children Black/Red/White BookEdit
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