Revision doesn't hear the footprints, absorbed in trying to get to Ryou. When he feels that hand on his shoulder, he immediately jolts back, pulling his pen out and shaking as he turns to face Chaosbringer, ready to strike like he's an enemy.

After a few seconds of analysis, he sees that isn't the case. He lets out a breath.

"I-- Sorry. I guess I thought you were something else." His shaking doesn't stop, though. His eyes flick around the room, looking for something, holding his eyes seconds longer on the shadows before moving on to the next part to examine.

"My friend is in trouble. ...And he won't be the only one, if this is what I think it is."

He needs help. He knows he's limited in his ability set here. And this dream was terrifying the first time it happened. He's not at all confident he could defeat those things a second time.