One-Eyed Owl

The One-Eyed Owl (real name unknown) is one of the most powerful and infamous figures in the ghoul world. Because Owl is extremely powerful and killed many ghoul investigators, CCG assigned an SSS rating to Owl.

The fate of Owl is unknown since Investigator Kishou Arima fatally wounded Owl during a battle in the 2nd ward.

Owl's relation with Yoshimura and the One-Eyed King is unclear.

Kureo Mado was targeting Owl to take revenge.

Past
One day, Owl appeared for the first time and single-handedly killed a Special Class Investigator that was affiliated with the 3rd ward. Owl was assigned an S rating in the aftermath.

One month later, Owl executed a large-scale attack on CCG's 2nd ward branch office. The office was heavily damaged and CCG suffered numerous casualties. Owl's rating was increased to SS.

Afterwards, Owl and other ghouls attacked the Ghoul Detention Center in the 23rd ward. Owl's rating was upgraded to SSS.

Later, Owl's faction attacked the 2nd ward for a second time. This time, First Class Investigator Iwao Kuroiwa dealt a lethal damage to Owl's kakuhou with his kagune. However, Kuroiwa himself was seriously injured and could not participate in subsequent operations.

Finally, Owl alone attacked the 2nd ward for a third time. Owl had completely recovered from the wound inflicted by Kuroiwa. CCG's team was unable to exterminate Owl. However, the genius Rank 2 Investigator Kishou Arima used the quinques of the Special Class Investigators as he went up against Owl. Finally, he defeated Owl, leading to CCG's victory. Owl, fatally wounded, vanished after this day ten years ago.