Leila Barton is the oldest child of Clint Barton, the member of the Avengers. She is 18 years old and her dream is to become a member of the Avengers like her father. This FF story takes place during Avengers: Age of Ultron, when Hawkeye's family is introduced to the rest of the Avengers. You can see the trailer for this story on youtube: https://www.youtube.com/watch?v=kRlB9X8VWEM (I do only own the character of Leila Barton, who is not part of the Marvel Universe)