In a world known as Gamindustri, four Goddesses and their sisters use the power of Shares to rule over their respective nations – the Goddess Neptune of Planeptune, Noire of Lastation, Blanc of Lowee, and Vert of Leanbox. The Goddesses and their sisters take a break from the hustle and bustle of nation-ruling with a quick camping trip to "My Summer Vacation Mountain. " When Nepgear, Uni, Rom, and Ram go for a walk, they pass through a series of shrine gates and...end up in another dimension?!
