It's Not Fate, It's Love / Fred Weasley
Alyssa Potter, Harry Potter's older sister has had a not so normal life at Hogwarts. How does Harry Potter have a sister? Well she was born two years earlier than Harry, and she was simply at the right place and at the right time when her parents were murdered, hidden under the bed. That doesn't mean she see her parents die, she did and it hunts her even more than it hunts Harry.
When they discovered Hogwarts and she met a pair of ginger twins, she started to learn the meaning of living. All of these while she was head over the heels for one of them.
After four years full of pranks and weird encounters thanks to her brother's and her past, she faces her biggest challenges yet. One of them, a literal challenge and the other one, the ache in her heart for a certain ginger.