It could be because they're more powerful than the smaller ones.

[But she's right, it is unnerving. It had been just a bad combination of small space+annoyingly large ayakashi+passed out mortals. Fortunately said mortals are still asleep and breathing, and will do better once they're out of the Blight zone.

Which Yona and Trunks are both heading for the Border of.]

You have good timing though, as that was just a bad place to get caught and I couldn't do what I needed to.