Iwao Kuroiwa

Iwao Kuroiwa (黒磐 巌, Kuroiwa Iwao) is a Special Class Ghoul Investigator and an Investigation Commander in Division I. He served as the Vice Commander of the 11th Ward Special Countermeasures Unit, and Vice Commander of Squad 1 during the Owl Suppression Operation. He was seriously wounded during the battle, losing his left arm below the elbow. Even so, he has managed to continue serving as an Investigator and is greatly admired for his charisma.

His son, Takeomi Kuroiwa, is also a Ghoul Investigator serving in the 1st Ward.

Yukinori Shinohara calls him by the nickname Iwaccho.

Appearance
He is a large stocky man with a square face and thick eyebrows.

Personality
Kuroiwa is mostly silent and stoic, merely grunting as a response many times. Even after losing his arm to Yoshimura he simply grunts and calls it unavoidable.

Past
Ten years before the steel bar accident, Kuroiwa fought during the second attack in the 2nd ward by One-Eyed Owl's faction as part of a special team. He dealt lethal damage to Owl's kakuhou with his quinque, but he was also seriously injured.

During at least one of the Owl Encounters Iwao served in S3 Squad under Kuki Urie's father.

Aogiri Arc
He was appointed vice commander of the 11th Ward Special Countermeasures Unit that is meant to deal with the Aogiri threat in the 11th ward.

During the 11th Ward Battle he, along with Shinohara, uses his Arata proto to fight Yoshimura and is left wounded from the fight.

After the Battle he recommends Amon for promotion after having seen him fight first hand.

Anteiku Raid
He takes part in the Anteiku Raid as part of Shinohara's squad. He assisted in bringing down Yoshimura, however, he loses his left arm during the fight and is quickly knocked off the roof by Eto on her arrival.

Post-20th Ward One-Eyed Owl Battle
He is seen in Shinohara's hospital room after the battle and is told by Fujishige Iba that he should be grateful it wasn't his dominant arm he lost.

Post-Auction
Kuroiwa appears during the reception following the Award Ceremony, greeting his son and Kuki Urie. The other Investigators discuss his amazing ability to continue serving, even after losing a hand.

Power and Abilities
He is a capable fighter being a Special Class Investigator and was able to wound Eto during her second attack on the 2nd Ward. In addition seems to recover from his wounds at a greater than normal speed.

He also has extremely high grip strength, exceeding that of his son's (who already has more than twice the grip strength of an average man).

Trivia

 * Kuroiwa served in the S3 Squad when its leader was still Special Investigator Urie.
 * Kuroiwa seems to be the only person capable of eating Misato Gori's "cooking" without suffering from food poisoning.
 * Since his son Takeomi is one of the few people who can rival a ghoul's strength and Iwao is said to be even stronger than his son, he's implied to be able to equally fight ghouls unarmed as well.
 * In Tokyo Ghoul Trump, he's featured as the "Nine of Hearts" along with Yukinori Shinohara.

Quotes

 * To everyone: "Mm-hmm".