Iwao Kuroiwa

Kuroiwa was mostly silent and stoic, merely grunting as a response many times. Even after losing his arm to Yoshimura he simply grunted and called it unavoidable. He thought the nutrients one gets from food were more important than training. Therefore, he believed a woman who is good at cooking is the best choice to be a wife. He appeared to be crying as he comforted his wife at his son's wedding.

He was a large stocky man with a square face, thick eyebrows, and round eyes. Like most CCG investigators, he wore formal clothing. In :re, Iwao's appearance remained unchanged, but was missing his left hand from fighting Yoshimura which he replaced with a prosthetic. When he was 29, Iwao was less bulky and was seen wearing the standard CCG suppression armor. 29-year-old Iwao Kuroiwa.png|29-year-old Iwao.

He was a capable fighter being a Special Class Investigator and was able to wound Eto during her second attack on the 2nd ward. In addition, he seemed to recover from his wounds at a greater than normal speed. Superhuman Durability: Kuroiwa managed to recover from a sword being plunged through his neck by Furuta after a period of time. Superhuman Strength: He had extremely high grip strength, exceeding that of his son's (who already has more than twice the grip strength of an average man). Pain Tolerance: Kuroiwa has shown to have a high tolerance for pain as he was still conscious after having his right arm torn off by Roma. Prosthesis: Since losing his left hand in the battle against the Owl, Kuroiwa had been fitted with an advanced prosthetic one. This hand was durable and capable of blocking powerful attacks as it was strong enough to block Shikorae's kagune, however, the prosthetic hand could easily break off of the stump if enough force was applied.