Kyo was an active boy who goes to a high school near Maihama, Chiba prefecture. He was sending busy school days of love and friendships. He had been just a normal boy until he met a transfer student Shizuno. His fate was changed dramatically by the encounter with her; he was involved in the fights between big robots in another world. Undergoing the numerous fights, he began to have several questions. Being in agony, he devoted himself into the war to save himself and his friends.