|Appears in:||Manga, Anime, Game|
|Japanese Voice:||Ayumi Tsuji|
|English Voice:||Kara Edwards|
Kozue is a small sophomore girl in height and shape, she has hazal eyes, her hair is yellowish in colour, which is always in two curly pigtails. Like all the other females, she always wears her school uniform.
Kozue's most defining trait is her inability to talk, which she makes up for in her telepathic abilities
She's always seen with Sena, though Kozue is the more kinder of the two, she offers Takumi a chance to join up with her and Sena's group to go stop the N.O.Z.O.M.I corporaton.