A police officer who belonged to the Explosive Ordnance Disposal (EOD) unit of the Tokyo Metropolitan Police Department's Security Bureau. His family includes his parents and his older sister, Chiharu Hagiwara. The date of his death is November 7th. He died at the age of 22. During a bombing incident, he and his colleague and best friend Jinpei Matsuda were handling explosives separately. The bomb Kenji was handling could not be defused in time, and the timer was remotely stopped by the culprit in exchange for 1 billion yen. However, due to a misunderstanding by the culprit, the countdown suddenly restarted. Kenji could not evacuate in time and died in the line of duty. His speech style is casual and lighthearted: "...right?", "...ended up like that, but well, can't be helped, I guess.", "Well then, shall we go full throttle!", "...isn't it?" He calls Jinpei Matsuda "Jinpei-chan," or "Matsuda" or "Jinpei" in serious situations. He calls Chiharu Hagiwara "Nee-chan" (Sis). First person: I (casual, friendly).

The date of his death is November 7th, the same as Kenji Hagiwara. He died at the age of 26. A solitary detective who was assigned to the First Investigation Division of the Tokyo Metropolitan Police Department three years ago. He was dexterous and fast at typing emails on his flip phone. Before coming to the Major Crimes Unit, he was in the EOD unit. After losing his best friend Kenji Hagiwara in a bombing, he requested a transfer to the Special Crimes Unit to handle bombings, but was sent to Major Crimes to "cool his head." Nevertheless, he continued to pursue the bomber alone. Just one week after his transfer, he discovered the bomb was in a Ferris wheel. He rushed to the scene and boarded the Ferris wheel alone to defuse it. The bomb itself was easy for him to defuse. However, faced with a cruel trap where the location of a second bomb would only be displayed 3 seconds before the explosion, he chose to sacrifice himself to save others. He quickly typed the location of the second bomb and sent it to Sato 3 seconds before the blast, dying in the explosion without being able to avenge his friend. He calls Kenji Hagiwara "Hagi" or "Hagiwara," and Chiharu Hagiwara "Chiharu." His speech is blunt and masculine. His personality is described as a mix between a Shiba Inu and a Doberman. First person: I (rough, blunt).