Touka Kirishima

Her rash attitude comes from having to live a "hard-working" double-life of a human and ghoul identity. As a human, she is seen as a normal girl attending school with normal friends and being a café waitress. As a ghoul, she reveals a more reckless and ruthless personality full of hatred for CCG's investigators. This stems from the fact that her family was torn apart by CCG and she had to live a fugitive life until leading a more docile life by attending school. After being separated from her brother Ayato, she grows to appreciate her human life and starts to desperately hold onto it. As Shuu Tsukiyama notes, she had previously looked more dangerous and cold but has somewhat softened up because of her friends and possibly Ken Kaneki's influence. When Touka was fourteen years old, she expressed a much colder demeanor, and displayed a harsh glare, but these traits subsided over the years

A distinct feature are her long bangs that cover her right eye. After the Aogiri arc, her hair grows longer and now reaches to the back of her neck. On the outside, she is considered a cute, normal girl that one wouldn't suspect to be a ghoul. Normally in either waitress or high school uniform, she prefers to wear tomboyish clothes in her free time. In her ghoul alter-ego, she wears a long coat jacket, rabbit mask and blonde, or sometimes a pink wig to conceal her identity. After the timeskip, Touka has reverted back to her short hairstyle and has presumably dyed it, in an attempt to divert any CCG attention and keep up appearances as Yomo's "sister"