In 2059, before a nuclear war breaks out in the Radiant Wasteland, the protagonist finally learns that he is seemingly only 18 years away from October 23, 2077, when the nuclear war breaks out. A dull sound instantly came, and the entire cavern base shook rapidly, just like the appearance of a terrifying earthquake. A large amount of rubble and soil slid downwards, and even some of the soft areas inside the base collapsed, but the muffled sound came from time to time. The vibration of the entire cave base also continued, and the red lights symbolizing alert had also been turned on and flickered on various corners and walls.