Kokuri

is a former member of the Mujina Bandits.

Personality
Kokuri is a fearful and cautious individual.

Appearance
Kokuri is pale-complexioned man of with a long nose and narrow jaw-line with pronounced cheekbones. He is of average height and has straight black hair that reaches his chin. Like the other prisoners, he wears an orange jumpsuit with brown sandals. He also wears round-framed black glasses.

Mujina Bandits Arc
After being part of the Mujina Bandits for a while, Kokuri stole some of their money and defected. He was caught for another crime, and sent to Hōzuki Castle to serve his sentence. He managed to obscure his connection to the Mujina Bandits, but expected to be killed in prison to keep their secrets. He sent word to Konohagakure he was willing to give them information about the Mujina in exchange for protection. When the Mujina's number two Tsukiyo arrived at the prison, Kokuri deliberately injured himself to frame Tsukiyo for attacking him, sending Tsukiyo to solitary confinement, while getting himself moved to the protected medical ward. When Boruto arrived, he at first suspected Boruto of being there to kill him when he asks for Kokuri, and restrained him after knocking him out. After verifying Boruto's story, he released him. When Boruto was sent back to general population, someone sneaked into the medical ward and stabbed him.

Later, with secret aid from Boruto and his team, the warden Mujō was able to transfer Kokuri to Boruto's cell. As Kokuri was so relieved to be with protection, the guards began scrambling about in desperate search. It was revealed that three days ago, one of the prison's all-access passes went missing, meaning a prisoner could have stolen it. As Boruto and Mitsuki concluded that it was one of their cell-mates due to the pass's disappearance only being possible when Boruto was escorted from his cell to the hospital wing, one of their cell-mates must be the culprit of both acts. Ultimately, they discovered the Arai was the culprit, quickly turning the man in to the guards.