Ryoji isn't sure what that tone of voice means, and it concerns him enough to slip into a human form to talk to Kai- maybe that will help? (Look, he even mostly remembers to get out of Kai's lap before doing that!) "They are building an army," he says quietly, "And they look like they've pulled together a lot." He tells Kai the rough estimate he gathered, of numbers and what they seem to have available to them.