金木 研

Formerly, Kaneki was a human studying Japanese Literature at Kamii University, living a relatively normal life. However, this soon changed after Rize Kamishiro's kakuhou was transplanted into him, transforming him into a one-eyed ghoul. After joining Anteiku as a part-time waiter, he learned how to live as a ghoul and eventually became known as Eyepatch (眼帯, Gantai).

After being captured by Aogiri Tree, he underwent a drastic personality change and after escaping, formed a group with the goal of protecting those precious to him and exterminating individuals threatening his place of belonging. His kakuja's distinct appearance earned him the alias Centipede (ムカデ, Mukade).

In Tokyo Ghoul: Jail, Kaneki encounters Rio as he is searching for the ghoul called Jail, who Kaneki is also searching for. The two meet while Rio is following a lead on Jail, believing the area Kaneki is in to be his turf. Rio comes across Kaneki while he is devouring powerful ghouls in order to become stronger. Seeing that they share a common goal, Kaneki and Rio work together to find Jail. It is through Kaneki that Rio is also introduced to Anteiku. 

From url=http://tokyoghoul.wikia.com/wiki/KanekiTokyo Ghoul Wikia