Danny Phantom fanfiction

Adelpha Manson, or Adel for short, is Sam's twin sister. Even if they were twins, the two couldn't be more different. Adel was blond like her dad and her hair was long and fell into soft waves while Sam had short, straight black hair. Adel wore more light colored clothes while Sam wore black. Adel was a ray of sunshine while Sam was a void of darkness. Despite these differences, the two loved each other a whole lot. Unfortunately, their parents sent Adel to a boarding school in London when the girls were about seven years old. They hadn't been able to see each other that often except over video chat and the holidays.
On the summer before 9th grade, the girls convinced their parents to let Adel go to school with Sam. Now Adel is back in Amity Park with the person she cares about most and gets to meet her twin's friends, leading her to develop a crush on Danny. What will these adventures lead to?