Height: 176 cm
Weight: 57 kg
Seiyuu: Midorikawa Hikaru
Born to a powerful E.G.O. family lineage, he has been the heir to the Itsuki house for ten years. He uses his telepathic powers to conceal the truth behind the Mindbreaker.
Though he's in the tennis club, he leads the Paranormal Club. He has a cheerful demeanor, but he's often misunderstood.
|In order to cover his living expenses, he works part-time after school. That's why he's always napping in the middle of class.
Naoya is the only one of the group who understands their role in Aquarian Age, thanks to his family. He's not anxious to share, though, due to his personal interest in finding a Mindbreaker.