What was "debugging" technology?
To explain that, one had to start with the "Grim Laugh Shell" Angel had previously purchased from Pirus.
The Grim Laugh Shell was a special item jointly produced by Pirus scholars and the Scarlet Lantern Banshees of Grudge Woman Town. It used a Recording Shell to capture the banshee's grim laughter, triggering fear in others' hearts and making them hallucinate that they were being slaughtered.
It sounded simple enough—just recording a sound.
But in reality, there was profoundly intricate knowledge involved.
A banshee's grim laughter could, by analogy, be regarded as a type of spell.
Casting a spell required passing through many stages, such as the internal circulation of energy and the external release of energy... Every step required extraordinarily precise calculations, as well as long years of accumulated experience, before a spell could possibly be cast successfully.
Therefore, merely using recording equipment to capture a banshee's grim laughter and produce a similar spellcasting effect was simply a fantasy from the heavens.
It was basically impossible.
At least before this, such punk mechanical spellcasting had existed only in novels, as far as Angel was concerned.
Yet Pirus's "Grim Laugh Shell" had shattered Angel's previous understanding just like that.
So how had Pirus done it?
There were two reasons: the special nature of the Recording Shell, and Pirus's unique "debugging" technology.
The Recording Shell's special nature was an objectively existing fact and could be set aside for now.
The crucial point was Pirus's "debugging" technology. It could be understood as a special algorithm that adjusted various parameters, gradually allowing the Recording Shell to adapt to the banshee's grim laughter until it eventually evolved into a "Grim Laugh Shell."
Angel was extremely curious about this kind of cyber spellcasting embodied by the Grim Laugh Shell.
If a Recording