"The Whirlpool Incident" occurred only within London City.
Therefore, those who were involved in the incident were all local people, namely the Dark Denizens (various kinds) who hold faith in Mother Night.
The Whirlpool Cult was founded only several months ago, limited to the "instructor development" within London City, and it had a long way to go before spreading to the outside world.
The Whirlpool Incident, participant incidents, and the coveting of world sovereignty by Fate were all connected.
As a result, many Old Kings turned their gaze towards London City, which was absolutely enclosed from the outside.
They dispatched subordinates with dark traits and covert infiltration abilities to occupy the area surrounding London City, attempting to infiltrate the city and ascertain the relevant reasons.