This is a world where human ethics are going crazy! ? An invincible being called "Iron Man" suddenly appears. Although it moves slowly, no attack is effective on it, and it attacks and kills people one after another. Currently, there are 365 confirmed specimens in Japan, and more than 25,000 in the world. There is no countermeasure. People seemed to be in despair...but one year has passed since the Iron Man attacked. Data is gathered that people are living more lively lives than before the Iron Man invasion. Those who try to live life to the fullest and those who try to help each other through the iron man who kills people indiscriminately. Then, conversely, someone who traps someone they hate and forces them to be killed by Tetsujin. Yes, Tetsujin completely changed everyday life in every sense of the word.
