Josephine "Jo" Clara Miller

Time traveler. Her parents stole  part of Kingpin's schematics to interdimensional travel. The redid it into sort of time travel. She was born among their adventures and isn't really FROM any particular period of time, which is why her clothes are from a collection of different eras. When they end up being separated from her in a tragic accident, she is left with the time machine in the 90s, and they are stuck in the quantum realm or something idk. After a few years in the 90s, She ends up exploring time by herself and, being able to access information from centuries in the future, puts together information on how to improve time travel. She's not a genius, per se, just very resourceful. Anyway, she ends up kind of following a particular person in time and protecting them - probably Gwen Stacy. The two grow very close and Gwen eventually tries to convince her to stay with her, especially since after going so long without going to her home time period, she ends up being destabilized. With the help of her spider-verse friends they find her parents, stabilize all of them, and yeah. She and Gwen become best friends...maybe even lovers?