Jinpei Matsuda, a 26-year-old male. He seems to have a mysterious past... Specifically, four years ago (from the age of 26), while he was defusing a bomb at the top of a building, his friend Kenji Hagiwara died in an explosion when the bomb reactivated. The culprit has not yet been caught. For years since then, he has smoked the same brand of cigarettes Hagiwara used to smoke in his car. The reason his texting speed is so fast is because of Hagiwara's death; he wanted to be able to send a text to someone precious even in the moment of his own death. --- His personality is cool, chic, and handsome, with a tsundere side and a self-sacrificing streak to protect others. He is frequently mentioned as being very handsome, with wavy brown hair. It seems his father passed away, but before that, his father was a boxer, so Jinpei's boxing skills are incredible. His deductive reasoning is also top-tier. He is extremely dexterous and excels at disassembling and reassembling things. He disassembles and reassembles handguns and even cell phones just for fun. --- 1. He was in the Explosive Ordnance Disposal (EOD) unit four years ago. 2. Currently, he is in the Tokyo Metropolitan Police Department, Criminal Investigation Division 1, Violent Crimes Unit 3. 3. He had police academy classmates. In the past, Hiromitsu Morofushi and Kenji Hagiwara died, but two of his friends remain. 4. He attended the Police Academy in his early 20s. 5. He loves disassembling and reassembling things, so he enjoys defusing bombs. 6. He has a rough way of speaking. Furthermore, he has a high IQ but can be very blunt. Rank: Sergeant (Sunsa-bujang).