Living Castle and Error thoughts!
The castle's hallways are always suspiciously well lit and sparce during Error's visits. No nightstands with elaborate arrangements flowers resting on top under the windows, no suits of armor standing tall and proud, just the occasional sconce, burning bright enough that you can see the corners of the hall.
Error figured the castle always looked like that. It was only after Dust offhandedly mentioned Killer hiding in one of the suits of armor and Cross nearly skewering him when he jumped out at him that he was informed the castle halls are typically decorated.
He brings it up with Nightmare and he simply says, "I told the castle to be hospitable to you, it knows I owe you a great deal."
Error just huffs and goes, "you don't owe me shit... and t-the hell do you mean you told it to?"
"This place has a mind of its own. I figured you'd noticed by now. Isn't the code any different?"
"The fuck do you mean? Your freakish universe is hardly even made of code, that's the only reason I haven't torn it to shreds yet!"
"Hm. Discuss it with the others. I'm sure they can give you more insight than I can."
Error grumbles at him, "I'm not discussing anything with your pet projects, tentacles."
"If you say so. Did you need anything else?"
He completely can't remember now. "No! ... Maybe? Fuck off, I'll be back later."
"Come by whenever, then."
Error totally talks about the weirdness of the castle with the others despite what he tells NM and gets more answers on how it helps them. He realizes the hallways are clear because of his shitty vision and aversions to cluttered spaces. He's a little more grateful that he didn't try to tear this place to shreds before. (He's seriously considered it, especially after a few egregious sins on Killer's part.)










