Thankfully for him, the military area wasn't isolated from the nation's population, like in the middle of a desert, or something like that. It didn't stray away from the southern town of Derendal, and he could hand not too far from the military base without looking like an intruder or necessarily drawing attention.
The base was absolutely massive, almost a small town in and of itself.
('And it has rigorous anti-espionage measures,') Rui mused.
When he tried sensing the happenings of the facility using Seismic Mapping and Tempestuous Feel, he couldn't sense much.
That was to be expected, anti-espionage esoteric technology was something he had run into many times. It was necessary given that one lived in a world with Martial Squires with greatly powerful senses.
He sat in a bar not too far away from the establishment, as his Riemannian Echo kept a check of the front gate.