In 2022, Tokyo, where many drones fly over the sky. One day, Yazaki Yui (Mori), a chief appraiser who works for a real estate company, and her subordinate, Kobayashi, visit an apartment they have purchased. At the moment when they are about to return to the office after completing their business, the two are wrapped in pure white light. "Crash accident of a drone thought to be equipped with a bacteriological weapon" Until decontamination is completed, you will have to evacuate to the shelter on the third basement floor. Time and space for just the two of us. and….
