In a near-future Japan, where the world that felt like a festival slowly settles down, it is later referred to as the "Yuunagi Era." A gigantic airplane called "Tapon" continuously flies above. Inside, there is a woman known as "Director Alpha." From high above in the sky, she gazes at the world below, a world she will never descend to again. Like Alpha and Kokone, she is also a "robot person." Enjoy the leisurely time spent with them.