When Zhen Liu put out the call, the effect amongst the Kaijin was immediate and sudden.
They were all busy doing their own things at this point in time, but once they heard that a battle was about to go down, they immediately dropped whatever they were doing and got moving as fast as they could.
For some this distance was relatively short, like Nepherage and Blazejudicator.
[Apologies, but we must go and attend to the Executioner.]
[Let's move!]
The two of them were in the process of helping out the miners with their renovations but were more than happy to drop it if their creator was in trouble.
And from what they could see through the eyes of their allies, they were more than justified in doing so.
For some of the other Kaijin, they were a touch farther, but we're still close enough in the area to make moves.