"Do it quietly. Do you want that old timer to know what we're doing here?"
"...But you told us to do it faster, Boss."
"So, this is my fault?"
"N… no."
It was hard to stay quiet, and from how deep they had already dug from the Surface, even the sound of their heart beating could be heard by the person beside them. And since there were probably more than 20 of them there, even a silent single whisper could be heard by everyone…
…and since they were digging forward into the Underworld, their gentle movements almost sounded like the cogging of a machine.
There were four Earth controllers pushing the dirt aside, creating a sort of hard wall in the process as they could not really push the dirt to the Surface.
"How… long did it take us today to run all the way from the Surface?"
"Long."