Jenny Everywhere (also called "the Shifter") exists in every plane of reality at once (which is very similar to H.P. Lovecraft's Yog-Sothoth). She also has other mysterious powers that she doesn't like to use because she would prefer to use her wits (she claims the reason is that she wants to "play fair" even though this probably got her killed numerous times and doomed the world). She is an Asian or Native American that wears a scarf and aviation goggles. The character's website says she is of "average size and has a good body image". She is "excitable, passionate, attentive, curious, and caring" (quoted from a post by her creator). Her origin is unknown. Her archenemy is Jenny Nowhere. Nowhere, who is also public domain, has no defining traits aside from being Jenny Everywhere's enemy so the writers can use her in any way they want.
In order to use Jenny, the creator have to add this quote to their work:
"The character of Jenny Everywhere is available for use by anyone, with only one condition. This paragraph must be included in any publication involving Jenny Everywhere, in order that others may use this property as they wish. All rights reversed."While the character is public domain, if she is featured in a story with copyrighted characters, those characters are still copyrighted even though she is public domain.