Kunugigaoka Junior High School

Kunugigaoka Junior High School (椚ヶ丘中学校) is the name of school in which the students of Class 3-E attend.

Overview
Kunugigaoka Junior High is a prestigious private school located in Tokyo, Japan. It is renowned for being one of the top schools in all of Tokyo and has a high rate of successful students. The school itself is actually a gakuen (園) as it also has a high school that the students of Classes A-D enroll to through an escalator system and students from other schools enter through a transfer student exam.

Academic System
The school houses a unique system known as the "E System", created by Chairman Gakuhō Asano which is based off of the 20:20:60 worker ant ratio. The system's ideal is that in which 95% students are working and the remaining 5% are lazy and in order to execute that, an extra class called "Class E" was created to serve as that 5%. As the lowest and "worst" class, this is used as a driving point for the 95% of students to strive academically so they don't end up as that 5%.

Main Building
The main building is shown to be a huge building with a spacious campus. The campus is reminiscent to a small college campus. It has four main stories, a gym, a baseball field, a track field, and a swimming pool. The main building itself also houses both Junior High and High School of Kunugigaoka.

Class E
Class E is located on a mountain about one kilometer away from the main building. Their classroom takes the appearance of a rundown/small school building that has basic classroom and school accommodations like a small faculty lounge, desks, a blackboard, and a field. It is a former classroom for Chairman Asano where he teach as a Cram School Teacher before establishment of his own Academy.

Uniform
Like all middle school Japanese school systems, the students are required to wear uniforms. The standard uniforms are gray trousers/grey skirt with black-lined edges with a matching grey blazer with lined-black edges, a black or navy blue waist coat and a white button up shirt along with a black tie.. The students are also required to wear the school's issued loafers. The uniforms have several variation as some male students wear a variation of the grey trousers that contain cargo pockets (i.e. Nagisa Shiota), some students where the cardigan instead of the blazer and the skirts can vary in length. This does not include wearing your own jacket or sweater instead of the standard school blazer/sweater and wearing anything other than the standard school loafers (i.e. Karma Akabane) as these violate dress code.

Class 3-E

 * Karma Akabane
 * Yūma Isogai
 * Taiga Okajima
 * Hinata Okano
 * Manami Okuda
 * Megu Kataoka
 * Kaede Kayano
 * Yukiko Kanzaki
 * Masayoshi Kimura
 * Hinano Kurahashi
 * Nagisa Shiota
 * Sōsuke Sugaya
 * Tomohito Sugino
 * Kōtarō Takebayashi
 * Ryūnosuke Chiba
 * Ryōma Terasaka
 * Rio Nakamura
 * Kirara Hazama
 * Sumire Hara
 * Rinka Hayami
 * Yuzuki Fuwa
 * Hiroto Maehara
 * Kōki Mimura
 * Takuya Muramatsu
 * Tōka Yada
 * Taisei Yoshida
 * Ritsu
 * Itona Horibe

Class 3-A

 * Gakushū Asano
 * Teppei Araki
 * Ren Sakakibara
 * Natsuhiko Koyama
 * Tomoya Seo

Class 3-B

 * Kokona Tagawa

Class 3-C

 * Kaho Tsuchiya

Other

 * Kazutaka Shindō

Class 3-E

 * Korosensei
 * Tadaomi Karasuma
 * Irina Jelavić
 * Aguri Yukimura

Main Building

 * Gakuhō Asano (Chairman)
 * Ōno
 * Kiyoshi Terai

Trivia

 * Kunugigaoka is named after the sawtooth acorn.
 * The school has a mascot named Kunudon (くぬどん).