Twilight sat down. "how do I start...."
"With this, perhaps." Celestia said as she used her magic, removing a journal from Twilight's bag. "I never thought that Sunset would ever use this again, I never thought that she would even keep it...."
"She did, and before anything happens, I just want to say that Sunset is really sorry for what happened between the both of you, here! You can read it..."
"Yes, I know..." Celestia interrupted. "I know Sunset has changed."
"So you want to help her?" Twilight asked.
"I do, but...."
"Yes?" Twilight pressed. It seemed that Celestia would always tense up and try to change the subject whenever Sunset was mentioned. "Why not?"
"You see..." Celestia started, sitting back down. "Sunset and I used to be really close, like you and me. She lived in a more...how to say, unvisited part of Equestria. She had many siblings, too many that her parents could no longer support her."
"But she was talented indeed, much like you." Celestia pointed to the journal. "She used to be shy, disliked talking. So I gave her that, for her to write instead of talking."
"You did?" Twilight asked.
"Yup. But with time, Sunset became more confident in front of me and the royal guards." Celestia said. "She then quickly picked up many magic abilities even I found was difficult, and that you are yet to master."
"What?!" Twilight practically screamed.
"She was one gifted unicorn she was, but she was much like you, distancing herself from other ponies. She grew power hungry and only thought of herself. One day, when she came across a book...she...."
"Realised that there was another dimension, one that she could easily access, one that she would be able to gain power in?" Twilight asked.
"Yes." Celestia said. "She wanted to learn more about it, but being foolish as I am, I disagreed, causing her to find out on her own and...."
"I wasn't your fault." Twilight said.
"But it was, I let her go."
"And look what good came out of it!" Twilight said. "She made friends! She learned friendship. Just like how you taught me, by letting me go. Sure there were some bumps and twists in Sunset's road, but she made it in the end!" Twilight smiled. "And it is all because you let her go and find out herself."
"Thank you Twilight." Celestia said, smiling slightly. "Now, why does she need to return?"
"Given what Sunset told me, you might not be very pleased with her new-found friends at all..." Twilight said. "Sunset told me, that shortly after the battle with the sirens, the one I told you about a few days ago? Her friends and schoolmates were finally accepting her for who she was inside and that she has changed."
"So they each had slumber parties, the six of them, given that Sunset had left all her family behind. But after each party, the secrets that they all held to themselves and embarrassing moments that only they knew of, were all posted online." Twilight explained.
"Online?"
"Erm, let's just say that...I accidentally caused Spike to send letters to you about information that other ponies want to keep private, but instead of sending them all to you, I send them to the whole of Equestria, so all other ponies everywhere know secrets about each other." Twilight said.
"Ah. I see."
"So this user, called 'Anon-a-miss' posted all sorts of secrets that only Sunset and her friends knew about each other, such as pictures. The user also made everyone think that Sunset was the culprit by placing their profile following Sunset's hair colours and body shape. All the students assumed it was her, bullying her and hurting her from that day on." Twilight said. "But that was not all..."
"Sunset's friends, my friends were the ones that really hurt her. They stopped talking to her entirely. And when she tried to explain, they ignored her, even going to the extent of physical harm on her."
"What?!" Celestia said. "How could they?"
"I know, Sunset couldn't take it anymore either. She was damaged." Twilight said. "So she decided to return here. But shortly after her decision, the culprits were exposed."
"Who was it?" Celsita asked. "Anyone familiar?"
"Yes, actually..." Twilight answered.
"Who?"
"3 students, who you may know here, as the CMCs" Twilight said.
"Them?" Celestia said.
"Yes, the reason behind it was that they felt left out, their sisters partying with Sunset and all and they sorta....kinda...stole Sunset's phone to access the pictures...?" Twilight said. "They then posted it for everyone to see..."
"So Sunset's was...framed?" Celestia asked.
"Yes she was." Twilight said. "And she was hoping that you would agree to let her stay and forgive her."
"Of course."