Memory Palace and Crystal Heart

My Little Pony fanfic + brain burning Note: Because a little bit of the world view has been added, it may be OOC, and the settings of the original animation will be as close as possible, but the original plot is not particularly long. There are no plans for CP at the moment, but if you accept the enclosure and make yourself cute, readers will be very happy. If what is written is not to your liking, please go out and turn left. Maybe my writing is not very good. Teachers are welcome to give me guidance. ٩(●´৺`●)૭٩(●´৺`●)و