The duo launched Linebarrels of Iron in 2005 in Akita Shoten’s Champion RED magazine, and ended it in April 2014.
The duo launched the Getter Robo Devolution (Getter Robo Devolution – Uchū Saigo no 3-bunkan) manga in Akita Shoten’s Bessatsu Shōnen Champion magazine in December 2015.
The duo are best known for both the Linebarrels of Iron and Ultraman manga.
Shimizu and Shimoguchi launched their Ultraman series based on Tsuburaya Production’s most famous live-action special-effects hero in Monthly Hero’s magazine in 2011.