Katsunori Shiba

Katsunori Shiba is the homeroom teacher of Class 1-D in the 2nd Year arc.

Appearance
Katsunori is a middle-aged man with short black hair and blue eyes.

History
Not much was known about this man, but he is one of the people that knows Ayanokoji's origin and history since he's working together with Tsukishiro to expel Ayanokoji.

Etymology

 * The name Katsunori means "overcome" (克) (katsu) and "rule, ceremony" (典) (nori).
 * Katsunori's surname Shiba means "officer, boss" (司) (shi) and "horse" (馬) (ha/ba).