In Natsume's office, the wall of the conference room was changed to a magic mirror. It seems that it is to lose the feeling of blockage and to create an environment where it is easy to work in an open space. "I can't see the inside from the outside, but I can see the outside from the inside ..." Natsume, who felt a little frustrated in the unrealistic space, wondered if she was in the conference room in the middle of the night. Satisfy your frustration. She didn't even know that if the outside of the room was dark, the inside would show through ...