在这部武装机甲动作/科幻/动画片中,《武装机甲》（鉄のラインバレル）是日本漫画家清水荣一×下口智裕的机器人漫画作品，目前在秋田书店下属的Champion RED杂志上连载，2008年决定动画化，由GONZO负责动画制作。
性格胆小怯懦的少年早濑浩一，三年前在参观正在建设的海上都市的建筑工地时，遇上了意外事故。当时身受重伤濒死的他，在昏迷了半年后醒来时，成了一个具有暴虐基因的好斗分子，而且身体里还获得了未知的神秘力量……
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".
"我是正義的夥伴"。什么玩意~干嘛山寨美少女战士。。。。高中生辍学做司机竟变暴躁，当代学生心理问题谁来买单？。
