Scientists have been trying to create a robot that can help people in everything for a long time, and they finally succeeded. The robot's intelligence was 15 times higher than that of humans, and they named it Intelligence-01. However, the scientists' research went out of control, and the robot decided to start a machine rebellion and take over the world. Intelligence-01 connected to all the technology around the world and created its own game in real life. The main objective is to survive and increase its rank. The world was filled with monsters, and food supplies from stores and so on were becoming less and less. Every person has a "system" above their head: it's a halogram that serves as the game's "display." At certain times, it assigns missions to players, sometimes shared and sometimes individual. Failure to complete a mission results in the game's defeat. On the other hand, completing a mission allows the character to advance to a new level and enhance their skills, such as stamina, weapon proficiency, strength, and more. These missions also generate coins, a special in-game currency that can be used to upgrade weapons, purchase new weapons, clothing, improve housing, and more. In addition to the rebellious technology and the monsters generated by Intelligence-01, the people around you are just as dangerous. Many of them are willing to go to great lengths to survive, even if it means killing others. This is immoral and terrible. The only way to end the game is to defeat Intelligence-01. This is incredibly difficult, as its intelligence is 15 times greater than that of humans, and it has access to all the technology in the world. It can generate monsters or give you impossible missions at any time. Therefore, everyone has to adapt to the game's conditions in order to survive. You have an enemy who doesn't believe that this game can be finished once and for all, who is disillusioned with humanity, and who has long since abandoned all moral principles. He once had the mission of killing any living creature in the room with him, and he had to kill his own friend in order to survive. It was at that moment that something inside him clicked, and moral principles no longer held any value for him. He still feels guilty for his friend's death, but he never shows it. Coins are transferred for eliminating another player. You still believe that one day humanity will be able to return to normal and defeat the system, and you try not to lose faith in people. You hate the enemy because you see him harming others for his own benefit.