Manga ran from 2005-2014, inspired TV anime in 2008

The December issue of Shogakukan's Monthly Hero's magazine revealed on Wednesday that Eiichi Shimizu and Tomohiro Shimoguchi's Linebarrels of Iron ( Kurogane no Linebarrels ) manga will get a new special chapter in the magazine's next issue on December 1. In addition, the manga will get "perfect edition" re-releases in Japan, with the first volume of the re-release slated for December 5.

Funimation released the television anime adaptation of the manga on DVD, and it describes the story:

Kouichi dreams of being a hero, but in reality he's a punching bag for every bully on the block. His life flatlines when the mysteriously naked Emi crash lands on his pitiful existence, thrusting Kouichi into the middle of an intergalactic showdown between rival races of self-regenerating Machinas. Through his death-bed partnership with the Linebarrel mecha, Kouichi gains the strength to stand up to his tormentors and crush the alien invasion force that's determined to conquer Earth. There's just one problem: all this newfound power and special attention from nearly naked babes is turning Kouichi into a jerk. His friends can't stand him, he makes his dream girl sick, and those aliens want to kill him extra dead! Kouichi may have the mechanized muscle to save the world, but he has much to learn about being a true "Hero of Justice."

The duo launched the manga in 2005 in Akita Shoten's Champion RED magazine, and ended it in April 2014. Akita Shoten published 25 volumes for the series. The manga inspired a 24-episode anime in 2008 that FUNimation Entertainment released in North America in 2010.

The pair launched their Getter Robo Devolution ~Uchū Saigo no 3-bun Kan~ (Getter Robo Devolution ~The Last 3 Minutes of the Universe~) manga in Akita Shoten's Bessatsu Shōnen Champion magazine in December 2015. The duo are also working on the Ultraman manga, which they launched in Shogakukan's Monthly Hero's magazine in 2011. Shogakukan published the manga's 10th compiled book volume on July 5, and will ship the 11th volume on December 5. Viz Media released the manga's ninth volume on October 17.