A sequel manga titled Ex-Arm EXA was serialized in Grand Jump Mucha from August 2019 to February 2021 and compiled into two volumes.

In 2014, a high school student named Akira Natsume endures a phobia of electrical devices while also being very good at diagnosing them.

16 years later, a young policewoman named Minami Uenozono and her android partner Alma retrieve and activate a highly advanced AI superweapon known as an "Ex-Arm" and put it into full control of their ship as a last resort.

A first series, written and illustrated by Komi, titled Ex-Vita, was published in Shueisha's seinen manga magazine Miracle Jump from December 13, 2011, to April 30, 2013.

[28][29][30] A novel titled Ex-Arm the Novel: Deus Ex Machina, written by Atarō Kumo, was published by Shueisha under its Jump J-Books imprint on December 19, 2018.

[46] Originally set for a July 2020 release,[47][48] the series aired from January 11 to March 29, 2021 on Tokyo MX, SUN, and BS Fuji due to the COVID-19 pandemic.