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Kameko is a female employee of the Uma no Hone comic shop. She got her nickname because of the camera she is always seen carrying around to take pictures of anything and everything remotely interesting to her. Conversely, she is afraid of getting her own picture taken by cameras and generally avoids interacting too much with others.
Appearance-wise she is petite, flat-chested, and has wavy hair which she consciously hides with a huge hat.
(Source: Denki-gai Official Website)