Underground City

Lore & Background

Over time, the facility became a symbol of the Kingdom's hypocrisy, masking dark truths beneath the surface of a peaceful nation. It was here that critical events unfolded, including the containment of powerful sinners and the interrogation of those who knew too much about the Demon King's return. The eventual collapse or exposure of this complex marked a turning point in the war between humanity and demons, revealing the extent to which the Holy Knights would go to maintain their control.

In Their Own Story

The torch flickered against damp stone walls, casting long shadows that seemed to reach for the prisoner's ankles. Deep below Liones, silence was heavier than the iron bars separating him from freedom. He heard the distant echo of footsteps above—guards who never looked down, only forward. Here, time did not flow like the sunlit world; it pooled in the corners, cold and stagnant. Every breath tasted of rust and old fear, a reminder that even kings could be buried in the dark.

Reader's Guide

Geographically, this complex occupies the bedrock beneath the Liones Capital, accessible only through concealed entrances known to high-ranking officials. Politically, it existed outside standard jurisdiction, answerable directly to corrupt factions within the Holy Knights or the Crown. Key landmarks include the Torture Chambers used for extracting information from captured Sins and the Deep Cells where powerful magic users were magically suppressed. Historical significance lies in its role during the framing of the Seven Deadly Sins; it was a primary location where evidence was fabricated to justify their execution, shaping the political landscape for decades. Visitors in lore often describe the air as unnaturally cold, with magical barriers preventing unauthorized entry. The layout is intentionally disorienting, ensuring that escape attempts lead deeper into the complex rather than toward freedom.

Did You Know?

• The facility was used to imprison King Galand before his eventual release and subsequent rise to power.
• Magic suppression wards were installed throughout the cells to neutralize powerful prisoners like Meliodas.
• Access points were disguised as ordinary storage rooms within the Capital's administrative district.