At first, Nishino Ruta was just purchasing some supplies, piling them up in the basement, occasionally muttering 'Prevention is better than cure', 'Things are getting dangerous lately', 'The world is not peaceful'...
Whenever he said this, the guest would concur, citing various examples like 'I have a friend who works in a secret laboratory', 'I've heard the media is blocking information', 'Hospital admissions have significantly increased'...
Nishino Fuyu couldn't understand what the adults were discussing, but as a child, she could more sensitively perceive the change in atmosphere—a peculiar and secretive emotion was spreading, making her and her brother edgy, and start feeling unfamiliar and afraid of everything around.
