[Try the filter trick to double-check if this guy was Terumi or not? Admittedly, it was an idea that could probably work. But given that Terumi still went by two different names at one point, what's to say that he can't somehow trick the journals into only registering for this guy's name. Kazuma.
And Ragna knows that he told Hakumen that he'd buy the story that this guy and Terumi are not the same person (at this point), and he knows that Hakumen has no reason to lie about it when Terumi's a common enemy between the two, but... still. Ragna can't find himself trying to believe this guy. His hatred for Terumi -- Hazama, whatever -- is just too strong.
He has to make sure for himself.] You say you've got nothing to do with the guy? Prove it.
[Voice | 80% Filtered]
And Ragna knows that he told Hakumen that he'd buy the story that this guy and Terumi are not the same person (at this point), and he knows that Hakumen has no reason to lie about it when Terumi's a common enemy between the two, but... still. Ragna can't find himself trying to believe this guy. His hatred for Terumi -- Hazama, whatever -- is just too strong.
He has to make sure for himself.] You say you've got nothing to do with the guy? Prove it.