Iron Knight was a manga created by Yagi Tomohiro and first published on December 5, 2013 by Sueisha's Weekly Shonen Jump in its 52nd issue of 2013. It ended with its 18th issue on March 31, 2014, with the final volume, which contains the final chapter; the epilogue was released on August 4, 2014.

The story of Iron Knight revolves around the life of Teppei Ushizume. Teppei is a normal boy that lives a normal life, until one day his whole world turns upside down...