Dahlia is a 17 year old forest witch in training who has a split personality.
When she is happy she speaks softly and calm or to put it another way you'd beileve anything she said as her voice sounds too pure and innocent to be malicious.
But when she's not herself she's aggressive and speaks in a cruel which is more alone the lines of a psychopath
Her emotions determie what spells she is able to perform but when she's in one of her dark moods avoid her at all costs as she doesn't actually have a good grasp on her magical abilaties yet.
but overall Dahlia is actually very social and helpful but tends to over do it at times meaning jessica has to stop her before her magic blows things up.
Which sadly is alot her magic does more bad than good but Dhalia isn't evil just a bit of a klutz and can't use her spells properly yet.