Higuruma's ability seems to be useful. I can see him turning into an ally.
Most of the people were that Higuruma got Domain Expansion even before Megumi, but it is not true. A new concept has been introduced (sure hit domain as compared to sure kill domain).
I noticed that Yuji's deduction skills are improving. More importantly, how Judgeman judges you is important, apparently there are ways to avoid being punished.