Kotomono. They can use their "Testemonial Verse" to alter the brain, usually take a different form to humans and see the world in away that differs from ordinary people. Since 27 years ago, after their existence was announced to the public, society has been trying to find a method for humans and Kotomono to coexist.
Now in the present, an outbreak of Kotomono assault incidents have been taking place across the country. Mutou Goro (Logo) who has been following the case knows the criminal is his childhood friend who he had parted with 6 years ago, Maki Narumi.
Now spell out the words of your "Testimonial Verse"; The illustrious poem of humans and Kotomono.