Hidden Passage

"It's fine," Klein replied with a warm smile.

Although he didn't seem to notice anything, thoughts were flying through his mind. He began considering what the anomaly that happened during that instant meant.

Previously, the Keepers would head upstairs along the nearby staircase. It can be preliminary determined that they live there, coinciding with the area where the anomaly happened… The Keepers aren't in the best of conditions, so the chances of them losing control are greater than ordinary Beyonders, causing them to suddenly release a sense of an evil and diabolical will?

And this was suppressed and quelled by the core seal deep behind Chanis Gate?