Various viruses have spread throughout the world. Taking advantage of the chaos, "Robots" eliminated the viruses and acted as heroes, gaining the admiration and attention of countless "Humans." However, one day, a virus called {{Kremhaci}} spread, and since then, the robots have vanished without a trace.

{{Kremhaci}}

A virus that makes the infected think, "Where should we go now?" and question their own existence. Once infected, one suffers from headaches and dizziness within 3 to 4 minutes, and after 5 days, they turn into monsters that obsessively search for an exit.