The underground city stood at a staggering height of sixty meters.

Sixty meters per level—equivalent to a twenty-story building. Yet inside this vast space, there was no sense of oppression. Instead, it evoked an overwhelming feeling of one's own insignificance.

Within such an immense structure, buildings rose from the ground like giant pillars. Only three of them reached nearly fifty meters, brushing close to the dome above. The rest were mostly around thirty meters tall. Even so, the scale o