Artisans, sinners, dragons, programs.
The four worlds currently known to have launched an attack on London City corresponded to the attributes above.
If divided into righteous and evil, artisans leaned toward righteousness, sinners toward evil, while dragons and programs tended toward neutrality.
The Emperor Slayer was a sinner.
Having slaughtered countless lives, she had long been entangled in sin... However, as a being of the Sin Realm, she could wield sin through methods bestowed by the Sin Realm, Transforming It into part of her own power.
Han Dong, hiding upstairs and observing, happened to use the moment the Emperor Slayer drew her blade to glimpse her true nature.
Her body was the sheath; her head was the blade.
Her sheath-like body was also a vessel for accumulating sin.
Han Dong knew very well that, with a gap of two major ranks between them, breaking through the Emperor Slayer's true body's defenses would be extremely difficult, perhaps impossible. Even a sneak attack would struggle to inflict meaningful damage.
So, Han Dong shifted his target to the "sheath."
He focused on the unguarded opening of the sheath—the neck.
With Green drawing her attention to the greatest extent, disrupting the Emperor Slayer's state of mind, along with the Netherblood regeneration granted by Earl.
Once every condition had been met.
He presented a Holy Sword of equal caliber and drove it into her body through the opening of the sheath.
The origin of the "Holy Sword" remained unknown. All that was known was that it might be connected to the Saint-tier World where the artisans resided. It was an object that slew evil beyond conventional understanding... It could even curse its wielder for failing to kill evil beings regularly.
Swish!
The instant the Holy Sword pierced the Emperor Slayer's flesh, it immediately resonated intensely