There's a quiet noise of acknowledgement. That's actually pretty clever... Spread out a small army of decoys, and anything with meaning is more subtle. Even if the newest group hasn't been exactly raising his spirits (although much wouldn't), Chikusa has to admit that he's fairly relieved to know that there are others with smarts involved in this.

"Do the different colors have any meanings? The symbols are obviously meant to mimic our own assigned ones..."