Suteburi Shippai! Ponkotsu Yuusha no Shiro to Kuro

is a Japanese light novel series written by Minato Ishikawa, with illustrations by Komori Machimura. The series began publication on June 10, 2016 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
I missed the step !? The red wizard instructor is still struggling with the apprentice hero girls today.

Resiro, the prestigious Weiss family of white magic, and Klose, the prestigious Schwarz family of black magic, have failed the graduation exam of the brave department. In order to face the re-examination, the two decided to train under Riku, the former strongest red wizard who made a failure decision.

"I can use the rare skill " self-regeneration "!" Resiro, a mini-loli hero who can only use beginner white magic and has acquired only the skills necessary for close combat.

"... I can use the" magic sword "..."

Klose, a black-haired busty hero who controls the "magic sword" instead of attack magic, even though he has no status required for physical arts.

In order to overcome the failure of the two to swing and acquire skills, he was called the former "Brave of the Guren" and lost his magical power on the verge of being attacked by "Red Flame", one of the four great heroes of the founding country, the four gods of the Gokoku. The training plan for Riku, the Red Wizard, begins!