Heather Young is a 17-year-old young woman living in America and wants nothing more to be alone and not bothered by people. She has shunned the concept of friendship after nasty previous experiences. However, her dad has not given up on her.

One day, a pink hair stranger appeared outside in Heather's yard. Heather investigates and finds out this stranger calls herself Pinkie Pie. The stories she tells sounds almost entirely made up. How will Heather deal with this woman who claims to be a magical talking pony from a faraway magical land? How will Pinkie fit into a world unlike the very friendly Equestria?