Our heroine Isora Kanna attends class with her 2 friends Kazuto & Yuuki and after school suddenly their school gets bombed. They run into the school building when some dude comes and tells Kanna that she must come with him and then she passes out. When she wakes up she finds herself in some military base and some ossan named Maximillian tells her that she’s in some other country now because THE WORLD’S AT WAR with suicide bombers running left & right. The totalitarian army is fighting the freedom army and Sujiku, Kanna’s home town is somehow caught in between. On top of this, Kanna’s parents hid the on-switch for a weapon of mass destruction in Kanna’s genes! She’s now their ultimate weapon girl whether she likes it or not, but at least she has hot army dudes protecting her.