Eiro followed the executive through the underground part of the organization's headquarters. Once more, they reached a door with runes inscribed onto it. Judging from how the executive was acting, Eiro would once more need to open this up himself using his tag, which now showed the Letter 'J'.
The Demon did just that, and the door opened up to let him inside. And from here, Eiro could already see the place where he wanted to be. This was the place where the research for the improvement on different artifacts was done.
It was a large room with a number of walls lined up here to create some more artificial rooms. From just a quick scan-through of this place, it didn't seem like they were actively creating the artificial artifacts here. That made sense, Eiro already figured that they belonged to the overarching organization in the first place.