This is Nera, a wolf demon living in Aren's body and restrained by the crescent moon necklace draped on Aren's body.

The written details:
Wolf ears
Black tips on the wings
Feather wings
Red eyes
Grey neck length hair
Tiger body
Black fur
White stripes
Index fingers and ring fingers are white
Wolf tail
Big and third toe are white
White insides

His coloring is opposite of Aren.

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Art and Nera © Me