Ex-Arm Vol. 8

Written by HiRock with illustrations by Shinya Komi, Ex-Arm is a sci-fi seinen manga first serialized in 2012.
The story begins in 2014 when Akira Natsume, a talented high school student, decides to improve his life and tries to get a girlfriend like his older brother. Before he has a chance, though, he loses his life in an accident. Sixteen years later in 2030, a policewoman and her android partner find and activate a highly advanced AI and superweapon called an “Ex-Arm"… but this weapon turns out to actually just be Akira’s brain!
The story grows even more intense in Vol. 8! Akira and the others are isolated while pretending to be bodyguards at the Ex-Arm auction. Will Akira still be able to make it out when things get really intense and a masked man appears?!
Notice: This manga is written in Japanese.