Talk:Tatara/@comment-73.188.199.241-20140906062633/@comment-76.194.234.8-20140914030425

Mostly conjecture and putting two and two together. Tatara does speak some chinese in canon, and Houji's highly successful ghoul hunting in China was mentioned at his introduction.

Also when Tatara is talking to Seidou, he equates "Fei's kagune" to "Houji's Quinque" and proceeds to ask if Houji has "Yan" since "Fei" is in Seidou's possession. We have seen ghoul investigators using quinques of the ghouls they've killed, like Oni-Yamada, 13's Jason, and Doujima. So it wouldn't be too much of a stretch for Tatara to think that Seidou is Houji's subordinate using this logic.