A Demon attached to Mikey's soul.
Before his death he committed the Seven Deadly Sins throughout his lifespan.
He was judged and sentenced to be an immortal Reaper for the area he lives in.
Forced to live with 7 small imps whom each embody one of the Sins and forever relive his past mistakes in his dreams.
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Deraku has actually been a very old character I've had almost as long as Mikey. Though I never actually had any sort of visual ideas for him. At first he was a wolf but recently decided for him to be a Hyena and thought this would be the perfect moment to draw him