Dark, when not anthropomorphic monsters are usually little animals that lurk in the shadows, whispering things to drive you insane. The Humanoid Dark spawn the little animal ones.
So Ayase who's now part Dark produces his own, which look like these things.
They look less simple than regular dark, due to his hybrid makeup ouo

 ayasebunny

Just because I make Dark for people doesn't mean your character can be a dark.
I dont mind if you adopt a similar idea, but you cannot be "Dark" ok?;