The Vortex Incident occurred only in London City.
Therefore, those caught up in the incident were all locals—Dark Dwellers of various kinds who worshipped the Night Progenitor Mother.
The Vortex Cult had been established for only a few months and was limited to recruiting "teachers" within London City. It still had a long way to go before spreading outward.
The Vortex Incident, the Participant Event, Fate's designs upon world sovereignty, and other matters were all interconnected.
As a result, many Old Kings had turned their attention toward London City, which was under absolute external seclusion.
They dispatched subordinates with dark traits and talents for secret infiltration to occupy the regions around London City, attempting to sneak into the city and uncover the cause.
However, London City had erected multiple barriers during this extraordinary period. Only one city gate remained open, while large numbers of Blackwing agents circled through the sky, keeping most foreign demons outside.
Still, a very small number of elites managed to infiltrate London City through disguises, concealment, isomerization, or strange abilities. Some even entered the highly secret parallel world connected to the Vortex Incident.
These infiltrating "outsiders" were also called "the Unclean" in the Vortex Cult's Sin Covenant, and they were targets that had to be eliminated.
At present.
The two Han Dong had happened to encounter in the Thorn Apartment were precisely the "outsiders" who had successfully infiltrated the city under commissions from their respective Old Kings.
The tense atmosphere eased somewhat, and the killing intent withdrew beneath the young demon's cloak.
The scent of blood brew released by Han Dong was genuine.
This young demon, capable of forming terrifying hook claws through Tentacle Isomerization, had once been invited to that scarlet-covered mountain. He had even witnessed and personally participated in the blood brew feast.