The Ember Zero virus breaks out simultaneously around the world. The city where the protagonist is located falls instantly, the streets are littered with corpses, the crowds undergo mass changes, and the police force and security are instantly defeated. When a disaster breaks out, the protagonist is trapped in a residential building and witnesses changes in his relatives, friends and neighbors. In a desperate situation, he activates the [Desperate Task Calling System] to see how he can save the world.
