Location from Spy x Family by Tatsuya Endo
Ostania's secret police headquarters — where counterintelligence agents hunt foreign spies and dissent with the cold efficiency of a state that trusts no one.
The SSS headquarters is the institutional embodiment of Ostania's paranoia. Its agents monitor foreign diplomats, investigate suspected spies, suppress political dissent, and maintain the surveillance apparatus that keeps the population compliant. The building feels like it's watching you even when you're the one inside it. Yuri works here as a rising counterintelligence agent, hunting the very type of spy his brother-in-law happens to be. The dramatic irony of his daily commute is lost on him entirely.
A forbidding government building with minimal external markings — the kind of place that announces its purpose through the absence of warmth rather than the presence of signage. Interior features interrogation rooms, surveillance monitoring stations, secure communications equipment, and the claustrophobic atmosphere of an organization built on suspicion.
Also known as: SSS HQ, Secret Police HQ, State Security