Nephilim Institute

The Nephilim Institute (ネフィリム学園, Nefirimu Gakuen) also known as just Nephilim and the Fallen Ones is a school that is run by Grigori.

Summary
Introduced in Volume 2 as an institution where ancient gears users attend that Tobio Ikuse, Natsume Minagawa, Damian Hoffman, Kouki Samejima, and Sae Tomoe now attend after leaving Ryoukou High School after the incident involving the Utsusemi Agency.

Uniforms
Both the male and female uniform of Nephilim is different from that of normal ones with the main color being blue, while the design is similar to one from a special countermeasure organization from an anime.

Training and Education
In addition to teaching them how to master their Ancient Gears, all Ancient Gear users who joined Nephilim underwent an extremely rigorous physical training regimen under the strict supervision of Fallen Angel Cadres such as Baraqiel, Chantinelle and Kokabiel to develop physical strength and stamina necessary to withstand the strain of using their Ancient Gears as well as fighting skills through sparring matches with each other. They are also taught various knowledge about the supernatural world such as different species of supernatural beings and magic.

Barakiel Class
The Barakiel Class is the class taught by the Fallen Angel Cadre Baraqiel.
 * Tobio Ikuse
 * Natsume Minagawa
 * Damian Hoffman
 * Kouki Samejima
 * Sae Tomoe
 * Soichirou Hasegawa
 * Pyrene
 * Natasha

Chatinele Class

 * Chantinelle (Teacher)
 * Miyu Oshiro
 * Nightingale
 * Kent Hammond

Kochbiel Class

 * Kokabiel (Teacher; formerly)
 * Austin Creed (Past Alumnus)
 * 4 Unnamed Male Students
 * Unnamed Female Student
 * Forest of Bewilderment User

Armoni Class

 * Armaros (Teacher)
 * Unnamed American Student
 * Basque Grand

Trivia

 * The term Nephilim /ˈnɛfɪˌlɪm/ (Hebrew: נְפִילִים, nefilim) were both the offspring of the "sons of God" and the "daughters of men" before the Deluge.
 * Despite not being a student of the Nephilim Insitute, Vali comes at least once in a while to spar with everyone.