Danny is a demon who came from hell to go live in the overworld. Her father is Satan and her uncle is Death the 100ft tall skeleton who lives in Purgatory. She has the ability to fly/levitate, open up portals, and breathe fire from her mouth. While in the overworld she meets her friend Vee who's a vampire humanoid and they both quickly become friends. She wants to act like a normal human being since she works at an office with her friend.

Danny while in her human form acts hyper and kind, but she tends to get huggy with the person she's with. Her eyes are normal white, her hearts are light pink, and she can make her tail invisible.

Danny in her demon form acts more quirky and sassy. Basically she's letting her inner demon take over. Her eyes turn yellow, her hearts turn black, and her tail appears again.