The giants in attack was developed by koei tecmo and launched on 18 february 2016 as animated action game on the theme " giants in attack " . This is a weed-cutting game in which players can move their limbs and weaknesses at high speed. In addition, there are random incidents in which the player needs to obtain a companion or object. An action game of the giants game, adapted by the same name comic book, is run by a human soldier whose goal is to eliminate the giant games that come with a large number of giants wandering around, whose weakness is behind their necks. 107 years ago (743), there was a sudden emergence of the human natural enemy, the titan. The remaining human beings, who faced a survival crisis, fled to a place where they built three huge walls. In this isolated environment, people enjoyed more than a hundred years of peace until the age of 10, when the 60-metre-high "super-megaly giants" suddenly appeared and destroyed the gates with overwhelming force, then disappeared, and the vicious giants stormed the walls to hunt humanity. Alan has vowed to kill all the giants with the indescribable hatred and hatred that he has watched them and his mother devour them. Two years after the collapse of the wall, alan joined the 104th training regiment to learn and combat the skills of giants. During the three years of the training corps, alan had the strength of others who could not match the strength of the training personnel during the same period. Alan, who was brave enough to challenge the titans even when he saw hell, joined the long-desired survey corps as he wished。