Casuals_Rewritten
(Note: This takes place around the beginning of season 6. Canon events differentiate completely after season 6 to what. Anything past season 6 will not be canon to this story).
The only time when all of the mane 6's cutie marks appeared on the Cutie Map, was when they had to go to Starlight Glimmer's town of ""equality"". Once again, all six of the mane 6's cutie marks appear on the map above a location that's to the North East of Ponyville and Canterlot. This situation takes the mane 6 to a college.
Why to this college? There is no bullying. Everypony gets on with each other there. There is no harassment, everypony there is kind to each other. There are no signs of bullying, harassment, or any manner of negativity. This is the last kind of place the mane 6 would think the Cutie Map demands all six to go to. But there is something underneath the surface, and it is something deeply tragic.