"The Strongest Old Man Protecting a Ruined City: A Post-War Sci-Fi Action Masterpiece!" In the aftermath of a great war, the city lies in ruins, and an elderly man named Souji Abaraya spends his days tirelessly cleaning the wreckage. However, this unassuming old man hides an incredible secret—he was once the legendary hero of the war. Now, as terrorists threaten to destroy what little remains of the city, Souji steps up to defend it. With his unmatched skills and unwavering resolve, he becomes the ultimate protector, a force feared by his enemies.