“We are The Starry Heavens, a bridge between the hearts of Japan and the Special Region♪.”

Summer 20XX. A gate to another world suddenly appears in Ginza, Toukyou, in broad daylight. When Japan and the Empire, two powers with different cultural backgrounds, meet, a bloody war is bound to break out, but for some reason it doesn't (lol). As an unprecedented era of intercultural exchange begins, Rory, Tuka, and Lelei form an idol group for some reason☆. As the three most beautiful girls in the Special Region, they can reach the top of the entertainment industry!… or so they think.