After the defeat of Earth Civilization, the remaining humans hastily retreated into the Underground City.
Within this confined space of the Underground City, which was already oppressive, the bitterness of defeat now permeated the air, filling it with the wounded and wails, turning what was once a place of slight hope into a veritable hell.
Dim lights, cries of pain, bloodshed, the injured… each element aggravated every human's nerves, and amid this oppressive and fearful environment, many were nearly driven mad.
However, at this critical moment.
A large door opened, and the leaders of the various Underground Cities streamed out.
Their appearance broke the suffocating atmosphere that had been driving everyone insane. Facing the expectant gazes of the crowd, they announced the most disappointing yet inevitable news.