Cozy Glow and Princess Celestia have a history together. One that no pony could ever imagine.
This is a backstory I decided to make for Cozy Glow, since we never got to know anything about her past. I'm planning on using this backstory in another fan fiction I'm going to write called "The Ending of The End Part 3" because I want to make a version where the villains reform.
Reminder: For those of you who have already read the story, this wasn't created to write Celestia dirty, and it wasn't to give her bad writing. It was mainly focused on giving Cozy a motivation for her evil actions. So if you don't like it because of the writing for Celestia, please don't berate me about it in any way.