Here, everything is perfect. If it's perfect enough to just be perfect, what could go wrong? A curious filly's dream is what ails her, as there is no way out of this dream. If you live the same dream, over and over, any dream this hellish would sure to make you cry in un-forgiveness.
What do you do, though, when your entire world crumbles around you? When you can't remember your friends, your home, or your family? What if this one simple wish was a mistake?

"I... I just wanted my sister back,"

Note: I changed the slice of life tag to Adventure, as it kinda changes a little as you read through. But it's still probably a bit of both, nonetheless.