In the office where Natsume works, the wall of the meeting room has turned into a magic mirror. It seems to be to eliminate the feeling of blockage and create an environment where it is easy to work in an open space. "You can't see the inside from the outside, but you can see the outside from the inside..." Natsume, who felt a little throbbing in his heart in this unrealistic space, unexpectedly found her in the conference room in the middle of the night. Satisfy your frustration. She doesn't know that if the outside of the room is dark, the inside becomes transparent.
