|Spoiler Alert: This page contains spoilers. Read at your own risk.|
Appearance and Personality
At one point, it was stated that Naotsugu appeared to be at odds with his fame, given his weak/gentle disposition. Despite his younger sister, Chiba Erika's nagging, he has never scolded her and hasn't mustered any defense, save for a few excuses. 
Naotsugu is a student at the National Defense Academy in the Special Warfare Technology Research Department. He has already made a name for himself as a Second-Lieutenant in the reserves. He is a member of a guerrilla infantry platoon of the National Defense Forces' First Division, known as the "Sword Corps". 
As a swordsman, he has mastered the "Art of the Thousand Blades". He is reputed to be one of the finest close combat specialists in the world to within three meters, known as the "Child Prodigy of the Chiba". He has cooperated with the Thai Royal Magicians, serving in the capacity as a swordsmanship instructor. 
"Illusion Blade" was Naotsugu's original nickname. 
- Naotsugu's mastery of Self-Acceleration magic allows him to run at a speed of up to 120kph.