Jessica Jones is a fictional character that appears in Marvel Comics. Jessica was created by Brian Michael Bendis and Michael Gaydos, the character debuted in Alias #1 in 2001.
Jessica was originally a classmate of Peter Parker, she eventually gained superpowers of her own when she got into an accident that involved radioactive chemicals, which proved fatal for her family. When Jessica Jones woke up from a coma, she realized that she was super strong, nearly invulnerable, and able to fly.
At first, Jessica was a confused and trouble teen until she eventually embraced her powers and used them for good.