Rilda is a happy-go-lucky micro wolf with a demon father, and is thus a Cambion. he is emperorwolf's 'bad' conscience. but even with this, he is not really a bad person, he does however, love pranks and mischief.
much of Rilda's past is a mystery, for what he can remember, he apparently just appeared out of nowhere to emperorwolf one day and claimed he'd been assigned to him as his little shoulder demon. the bigger wolf went along with it and was constantly bugged about pulling pranks or other immature activities.
nonetheless, Rilda proved useful as a conscience, the mature side of the larger wolf using him as a way of knowing what not to do.
once Aster joined them both as emperorwolf's other conscience; the 'good', Rilda took to trying to influence immature fun upon the bigger wolf while Aster promoted mature pastimes, the three of them getting samples of both from time to time and helping to make life just a bit more fun.
Rilda is the little demon on emperorwolf's left shoulder.
(emperorwolf's note: Rilda is a personification of my conscience in any art or text he appears in)