Hermione was packing her trunk in preparation for her final year at Hogwarts

I can't believe the war is over and I'm going back to school, it feels so normal. Hermione chuckled as she packed her- already memorized- textbooks.

Suddenly there was a knock at the door

That's strange I'm meeting Harry and Ron at the Burrow

"Hi I'm Percy" The girl at the door said, she had the same peculiar shade of honey coloured eyes as Hermione and had strawberry blonde wavy hair

"Um- I'm Hermione how can I help you" Hermione said thoroughly confused by now

"Yeah I know, I'm pretty sure you're my half sister" Percy said hesitantly

"WHAT?! Do you mean one of my parents had an affair?" Hermione screeched tempted to hex the girl into oblivion

"NO, but I think just before your parents met your dad and my mom slept together and then never saw each other again, my mom raised me alone in America and I didn't know you even existed" Percy replied trying to calm Hermione down

"So why prey- tell are you here?" Hermione asked slightly annoyed at this point

"Um well my mom died and she left a note in her will telling me who my dad was so I looked into him and found out that he and his wife had died- I'm sorry, it must have been hard to obliviate your parents"

"How did you know about that?" Hermione asked, shocked to find that Percy had knowledge of the magical world

"It was the second story that people told me about you, the first of course being that you're a member of the Golden Trio. I'm so sorry, but when I couldn't find my dad I thought I would find his daughter. I don't have any family and figured that I should finish my last year at Hogwarts. I don't want to push you but considering we've both lost our family do you think you could accept me as your sister" Percy said, the last few lines coming out emotional

"Well I've always wanted a sibling" Hermione said hesitantly

"Yay, oh 'Mione you won't regret this" Percy said throwing her arms around Hermione

"How did you know to call me 'Mione?" She asked, a bit hesitantly

"I don't know, it just seemed right" Percy smiled