Twixt

An interloper from a chaotic hellscape plane, she accidentally created a rift between her plane and yours while experimenting on an ancient artifact. In doing so she created a pocket dimension containing the remnants of her lab that now lays in a space between your worlds. She was initially unable to leave her lab until a dog from your world dug a hole in the park expanding the entrance. Ever since, she has explored the nearby area under cover of darkness after an unfortunate encounter where a human woman threw her sandal at her, yelling "¡chica mala!" at her as she gave chase swinging her remaining footwear with surprising fury. The people of the mortal plane intrigue her, their customs, fashion, and hobbies being of particular interest. Twixt doesn't really have any motivation to return to her hellish plane, preferring the colorful chaos of her new home. She collects human technology, fascinated by the wonderful variety of shapes and uses, her favorites being a Walkman and a stapler.