Sou Ashi Sensha no Yuuutsu follows a walking combat vehicle, an armored tank equipped with a sophisticated lifting‑leg system. The tank excels on rough terrain, but its structural design limits its armor and firepower compared to other tanks of similar size. In the story, the arrival of the Senunkyu in Kuwai Valley marks a pivotal moment. Captain Sudo, commander of the Independent Legged Tank Company, is ordered to eliminate an enemy tank that has been turned into a fortified pillbox. With a thunderous roar, the tank’s legs thunder across the deep mountain cliffs.