An anonymous tip reveals that Flight 206 has a bomb aboard that will explode unless the flight maintains certain altitude and remains within a prescribed area. Sena and Kuroki attempt to defuse the bomb in their Willwear, but the saboteur’s true intentions then emerge…

With the advent of Willwear, massive humanoid heavy machinery has been forgotten. But one of them has been stolen by its former pilot in Willwear. Only one other heavy machinery unit can stop it, and Funazaka rises to the challenge!