[Engineering]

Hideki appears to give Ryouma a long stare. Hard to tell, man's face can't be seen.

He is cross-referencing data, really.

"Right, you are the stray spirit that leaped onto the Ghost King and was trapped in his gaze until he released a cero."

"What are you doing here? This is a military facility and a private property, so you shouldn't be here twice over."