Kishou Arima

Kishou Arima (有馬 貴将, Arima Kishō) is a famed Special Class Ghoul Investigator known as the CCG's Reaper (CCGの死神, CCG no Shinigami). He is undefeated as a Ghoul Investigator and at some point was formerly partnered with Take Hirako. He is the protagonist of the spin-off Tokyo Ghoul: Jack, alongside Taishi Fura. His investigative skills and prowess in combat has led many investigators, such as Koutarou Amon, to admire him. Arima is a fairly tall man that has unusually long white colored hair. He is always seen wearing his glasses, with his face kept in an apathetic expression, rarely showing any emotion if not at all. Arima is also a well dressed individual who wears, like all ghoul investigators, a suit and tie, and, when on duty, a white overcoat.

During his youth at Seishin Senior Highschool, he was mostly seen dressed in his standard school uniform. He also always carried on his back what was perceived to be a 'guitar case.' However this was only a concealment for his blade quinque, Yukimura which he used to fight ghouls. He also had dark blue hair. Arima has a very calm personality, remaining unperturbed and composed even when surrounded by twenty-five ghouls. He is also an overly strict mentor, as seen when he reprimands Hirako for being off on his attack by 0.01 seconds. As a teenager, Arima exerted the same personality, and also noted his main hobby to be ghoul extermination. He has a very cold and calculating approach to exterminating ghouls as shown when he was about to finish off Renji, and Yoshimura appeared suddenly, instead of panicking or attacking he merely greeted the ghoul. Arima was shown to respect the dead as he reprimanded Itsuki Marude when he talked ill about Mado after his death. While the author describes him as massive and sadist, Arima has yet to display any signs of sadism at all. He has indicated that despite his stoic personality, he is capable of forming friendships, as he borrowed Haise Sasaki's book, and Akira Mado described his feelings towards Sasaki as "parental love". Arima is also not beyond complimenting his ghoul opponents as he did so when Kaneki damaged his quinque, Ixa.

Arima was hailed as a genius within the CCG, stemming from his affiliation with the organization since his teens. He was personally selected by CCG's chairman Tsuneyoshi Washuu to be promoted to a 3rd class investigator. Due to his outstanding talent, he was promoted to 2nd class investigator in less than a year. During the what was thought to be One-Eyed Owl's third attack in the 2nd ward, he gathered all the Special Class Investigator quinques and worked his way up to the One-Eyed Owl. He was the one who dealt fatal damage to the One-Eyed Owl resulting in a CCG victory. At some point, he also had an encounter with Yomo as well as Uta's group, dealing most of the damage to the both of them as well as subduing Yomo with ease before he was rescued by Yoshimura. Arima attended Mado's funeral and after Itsuki Marude had expressed his aversion to Kureo Mado's work ethic and fixation on Quinques at Mado's funeral service, Arima reprimanded him.After being given the missions to ambush any fleeing ghouls and neutralize the One-Eyed Owl, Arima was stationed within the underground route V14 where he had slaughtered a vast amount of ghouls by himself. Upon having his gaze fall on Ken Kaneki he quickly approached him with the intention of completing his mission and, without giving off any sudden warning, dealt an attack towards him. Arima had quickly lunged his quinque IXA through the back of Kaneki's skull, piercing his brain and ultimately coming out stabbing his left eye. He then began to easily dodge Kaneki's rapid Kagune strikes without showing much effort before witnessing his sudden emotional outburst. He quickly makes note of who Kaneki is, then mentions that it was raining outside which he knew from the sound of water pouring in, also stating that his sense of time gets dulled when he is underground.