The world where a giant rules over all. I built the huge wall, and the human who became the bait of the giant prevented aggression in exchange for freedom to the wall outside. But the nominal peace collapses by the appearance of the great giant more than walls, and a fight of the despair begins. The investigation corps which I demanded "the mystery of the giant" to lie in the birthplace of Ellen, and started an investigation out of the wall. "The giant of the woman type" with the intelligence appeared first. ‥ ‥ that L Vin that arrested "the giant of the woman type" while falling into a crisis of the corps destruction approaches in the real nature of the giant of the woman type.