Teto is a fair skinned young woman with red hair alongside two light burgundy "drill" twin-tails. She has thick bangs and a red ahoge atop her head. Her eyes are the color of rubies. Her left arm has the text "0401" with "Kasane Teto" beneath it.

She wears headphones with red lights. She wears an outfit that  is a cross between a school uniform and a military uniform, consisting of a light gray shirt and skirt, with two sets of sleeves. two rows of gold buttons on her chest with red lining.