Every Time, Everywhere #0001: Introduction
You are Jenny Everywhere: dimension-hopper, plainclothes-superheroine, Le Tigre fan, and coolkid. Not the "insufferable prick" variety of coolkid which acts like some kind of SUPERIOR LIFEFORM while showing no emotion whatosever: you're the kind who's totally chill with everyone you meet, and you have a ready smile. You sometimes go by the sobriquet "The Shifter," but almost nobody actually calls you this. Your claim to uniqueness is that, in addition to the ability to Shift between alternate realities at will, you exist in every reality in which it is possible to do so (sometimes because you just Shifted there), and thus technically you are not in fact unique. Your favorite food is toast.
In appearance: you're a twentysomething young woman with short black hair, and you look like you're at least partially Native American or possibly Asian; you're used to having slightly darker skin than those around you. You're wearing a black winter coat lined with fake fur, cargo pants, sneakers, an awesome-looking scarf,™ and a pair of aviator's goggles you inherited from your mother which look like they were designed in 1937. (You're not an orphan, it's just a long-term loan; she's made disappearing into a habit, and she hasn't taken you with her since you turned seventeen and started asserting your independence. You suppose your ability to Shift, if not your prevalence, has something to do with weird comic-book genetics.) There is a flower-hairclip in your hair, and a leather satchel slung over your shoulder.
You have just Shifted to the top of a building in the middle of a bustling metropolis. You stretch your arms as you walk over to the edge, looking over the cityscape. It looks approximately like New York or Boston or somewhere along those lines, but you don't recognize any particular landmarks; this is par for the course when you Shift between dimensions and specify that you want to go to a city. The rooftop is undecorated, and looks like an ordinary office building. It is a chilly early-winter day, at approximately lunchtime. Off in the distance, in the direction you're facing, a skyscraper is lit up with the text "December 11, 2014", and below that, "12:10" with a blinking colon. As you watch, the time changes to "12:11". Good, you synchronized the time right, too.
Oh right, the copyleft notice: 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, that others might use this property as they wish. All rights reversed. That's it. That's basically 50% of your entire concept, right there.
What will you do first?
Well ... that's up to you, now.