Takeshi Kotobuki is an Ajin who served as Kaito's cellmate during their time in jail. He managed to escape the facility on August 6, though he voluntarily returned just two days later. Following his return, he was placed in solitary confinement for a month of interrogation. The questioning ultimately went nowhere—Takeshi stuck to his story that he was already outside by the time he realized what had happened, and investigators couldn't shake his account.
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