Thread:Sunou-san/@comment-27078917-20160408131224/@comment-26689808-20160418104717

A few reasons.

The first reason is because of Houji's distinct lack of character, especially compared to the rest of the 20th ward crew (Amon, Akira, Shinohara, Juuzou, Seidou). The guy barely talks and we never know what he's thinking, his general demeanor seems shady enough that it won't surprise me if he turns out to be a ghoul affiliated with V.

The second reason is foreshadowing, and we know Ishida loves his foreshadowing. Houji just so happens to be in command of the 5th ward (5 = V), not to mention that Houji, like Arima, was once a disciple of Kureo Mado. Houji also tends to speak highly of Arima. I also noticed that Houji's eyed are blacked out a lot.