Oshino Ougi 〈2027〉

: Ougi is famous for the line, "I don't know anything. You're the one who knows, Araragi-senpai," which often serves as a psychological trap to make Araragi admit his own buried knowledge.

: In the Ougi Dark arc, it is revealed that Ougi is not a human relative of Meme Oshino, but an oddity (aberration) created by Araragi's own self-hatred and desire for self-correction. They serve as his internal critic, materializing his subconscious guilt and "correcting" the world as they see fit. Oshino Ougi

Ougi acts as the primary antagonist throughout much of the Second Season and Final Season , though their relationship with Araragi eventually shifts after their identity is formally acknowledged and "fixed" by the real Meme Oshino. : Ougi is famous for the line, "I don't know anything