Cannon God Exaxxion Series by Kenichi Sonoda

Let's say you're Hoichi Kano, typical high school student. Earth has been taken over by what seems to be a kindly, co-existing race of aliens. Your brilliant -- and depraved -- grandfather, whom you haven't seen in years, shows up to deliver a sexy android AND an integrated, armored, nearly indestructible gun-suit for your personal use. And just in time, because a ball-shaped robot with razor blade arms has just sliced through a wall like soft butter... moreLet's say you're Hoichi Kano, typical high school student. Earth has been taken over by what seems to be a kindly, co-existing race of aliens. Your brilliant -- and depraved -- grandfather, whom you haven't seen in years, shows up to deliver a sexy android AND an integrated, armored, nearly indestructible gun-suit for your personal use. And just in time, because a ball-shaped robot with razor blade arms has just sliced through a wall like soft butter. Think that's a bit of a culture shock? Wait until you find that our alien friends aren't quite as friendly as we thought and that this mechanical monstrosity is just the tip of the invasion iceberg! From Gunsmith Cats creator, Kenichi Sonoda, comes Cannon God Exaxxion! Collecting issues #1-8 of the series. less

It ain't easy being the savior of Mankind when you're still in high school, but Hoichi Kano will have to make due. Luckily, he has a super-cool integrated gunsuit at his disposal, just the ticket to take on the monstrous mechanical horrors of a pesky group of all-powerful alien invaders. But eventually, fire must be fought with fire.

Hoichi is Kano is a typical Tokyo teenager...except that he pilots a state-of-the-art integrated gunsuit and the antimatter-powered, cannon-toting, mega-robot Exaxxion, plus he may be Mankind's last hope against colonizing aliens. But other than that, absolutely typical. Luckily, these extras will make matters a bit easier when he has to rescue his high-school crush - and his Mom! - from alien imprisonment... moreHoichi is Kano is a typical Tokyo teenager...except that he pilots a state-of-the-art integrated gunsuit and the antimatter-powered, cannon-toting, mega-robot Exaxxion, plus he may be Mankind's last hope against colonizing aliens. But other than that, absolutely typical. Luckily, these extras will make matters a bit easier when he has to rescue his high-school crush - and his Mom! - from alien imprisonment. Of course, he may have to spend a bit of time explaining about his sexy shape-shifting android assistant, and he might need to do some image damage control after he levels a building or two, but that's nothing a typical teenager couldn't talk their way out of, right? I mean, it isn't like he stole a car or something! less

Hoichi Kano's responsibilities include single-handedly fighting an alien colonization. Luckily, Hoichi's got the right tools, like a state-of-the-art integrated gunsuit and the antimatter-powered giant robot, Exaxxion. But the invaders come with some pretty impressive gear, including a major league mega-robot that incapacitates Exaxxion.

Life has started to look up for Hoichi Kano. Sure, he's earth's only hope of resisting an insidious alien colonization-slash-invasion. Now, Hoichi is kicking butt. He's got the girl, the guns, and his father on his side. What more could a hero need? But in the shadow of a tenuous cease-fire a battle still rages.