|Japanese Name||黒磐 巌 （くろいわ いわお）|
|Age||41 - 42 (Tokyo Ghoul:re)|
39 (Tokyo Ghoul)
Kuroiwa Squad - Squad Leader
S3 Squad (Formerly)
|Relatives||Takeomi Kuroiwa (Son)|
Yoriko Kosaka (Daughter-in-law)
|Quinque||Arata series: Arata proto, Arata (Koukaku)|
Kuroiwa Special (Rinkaku, Rate S)
|Manga Debut||Chapter 59|
|Anime Debut||Episode 10|
|Novel Debut||Void: Chapter 5|
|English VA||R Bruce Elliott|
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.
Yukinori Shinohara calls him by the nickname Iwaccho.
He is a large stocky man with a square face, thick eyebrows, and round eyes. Like all of the CCG investigators, he wears formal clothing.
In :Re, Iwao's appearance remain unchanged, but he's currently missing his left hand from fighting Yoshimura.
When he was 29, Iwao was less bulky and is seen wearing the standard CCG suppression armor.
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. He thinks that more importantly than training, is the nutrients one gets from food. Therefore, he believes a woman who is good at cooking, is the best choice to be a wife.
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.
Owl Suppression OperationEdit
He takes part in the Owl Suppression Operation 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-Owl Suppression Operation Edit
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 AbilitiesEdit
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).
- 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.