How do you say black devil in Japanese?

Answer 1

Onii Kuro. I found this question and i was researching devils and blackness so i looked up devil/demon and black and i put them together and here it is signed Matt Mason

It is actually Kuroi Oni.

Kuro means black as a noun, you have to add -i to make it an adjective.

Oni, everywhere I checked, has only one "i".

And in Japanese, the adjective goes before the verb.