After taking a shortcut home, Sunnie Bun finds herself standing in front of a childhood haunt of hers, the Blue Bee Dessert Diner. Inside, she'll find a pony she never thought she'd see again, and another she wished she'd never laid eyes on.

Confronting her past and her uncertain future, Sunnie plunges forwards into destiny... one milkshake at a time.

[CW: Contains stuffing, mild weight gain, burps, etc]