You'd be in shock, too! 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. 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.