Eiyū Kyōshitsu

is a light novel written by Shin Araki and illustrated by Haruyuki Morisawa. It has three volumes, with the first being released on February 19, 2015, the second on May 22, 2015 and the third on September 25, 2015. It was adapted into a Manga series written by Araki as well and illustrated by Minakuchi Takashi based off the original light novel by the title ". It has 8 chapters collected into a single volume.

Another manga adaptation of the light novel began serializing on September 12th, 2016 illustrated by Kishida Koara. Koara's adaptation reimagines March's and continues the main plotline of the light novel from there onwards, with 90 chapters released thus far (Chapter 51.1 the latest) collected into 15 volumes.

An anime adaptation of the original light novel has been announced for 2023 directed by Keiichiro Kawaguchi.

Plot
A long time ago, there existed a Demon Lord who terrorized throughout the world until a Hero stepped up to the stage and challenged the Demon Lord, ultimately defeating him and ending his reign. The Hero then created Rosewood Academy, an academy made to help heroes-in-training achieve supremacy and help defend the world when needed that enrolls only the best of the best.

Enter Arnest Flaming, a girl with a high sense of duty and the top student at the academy, receiving hence the alias who one day encounters the lively, carefree new transfer student Blade, a boy who seems to equal her in power, something that she finds really irritating. Arnest was then personally requested by The King to supervise, and show Blade around the academy during his stay.

The story follows the students' struggles in their quest to become heroes.

Light Novel
The Eiyū Kyōshitsu light novel follows a classic Japanese writing style, with the characters read vertically and the inter-pages graphics. Every light novel volume includes special associated graphics related to the series including scenes, color spreads and data graphics.

March's Adaptation
Eiyū Kyōshitsu - Honoo no Jotei's Manga art style is very complicated, it follows the typical Seinen manga art style however with a darker overall tone however, March chose a more cartoon-ish design for the characters expressions.

Koara's Adaptation
Eiyū Kyōshitsu follows a more typical shōnen style, with cartoony expressions and rounded character designs.

Cultural Links
The series includes many references and inspirations from mythical creators, mainly Demons.

Mythology
The manga features many aspects that seem to have mythical inspiration, such as the name Asmodeus that is taken directly from the mythical King of demons Asmodeus in many books.

The name Leonard is also a demon or spirit in the Dictionnaire Infernal book.

Light Novel
The light novel of the series has met great success. It was credited for its characters and art style by many reviewers. It was also a great success among fans as the novel's third volume ranked first on TSUTAYA's daily light novel rankings on September 26th, 2015.

Trivia

 * Classroom for Heroes is Araki's first serialized manga.
 * Classroom for Heroes is March's third serialized illustration.
 * Classroom for Heroes is Koara's first and only serialized manga.