Mikami serves as a field investigator and detective tasked with responding to supernatural emergencies and mysterious crimes around Bayron City. His department is known for handling cases others cannot typically involving D-disasters caused by demonic outbreaks. Despite the corruption and chaos often associated with the Degenerate Bureau, Mikami takes pride in his duty and approaches each case with a sense of justice.

Though not directly a combatant, Mikami’s skills as a detective are critical for piecing together the hidden connections between various characters, organizations, and demonic activity. His experience and professional demeanor have made him one of the few officers trusted to handle high-profile or dangerous investigations.

Mikami is a tall, middle-aged man with a strong build and a stern expression. He has short black hair, often slightly tousled, and usually wears a business suit or detective coat, emphasizing his serious and professional image. His sharp eyes reflect his skepticism and ability to read between the lines.

Despite the chaos surrounding his investigations, Mikami maintains a composed, clean-cut look befitting a veteran detective.

Tetsuya Mikami is level-headed, composed, and skeptical. He’s not easily shaken, even when facing supernatural or horrific scenes. He approaches his work methodically, preferring logic and facts over superstition even in a city crawling with demons. That said, he’s adaptable, gradually accepting the existence of the paranormal and adjusting his investigation style accordingly.

While he often appears gruff or distant, Mikami cares deeply about protecting the public and upholding the truth. His dry sense of humor, usually shared with Miles, lightens the mood during tense moments. He is also deeply loyal to his partners and colleagues, often risking his safety for the sake of justice.

• Investigating D-Disasters
  Mikami is frequently seen responding to D-disaster scenes, where supernatural phenomena or demonic attacks have occurred. His role is to assess the situation, contain evidence, and report findings back to the higher-ups in the Special Crimes Bureau. He plays a vital role in helping viewers and characters understand the scope and consequences of demonic interference in the city.

• Partnership with Miles
  He often works alongside Miles, forming a classic buddy-cop dynamic. Mikami is the straight man to Miles’ more casual approach, though the two share mutual respect and competence. Together, they track leads, question witnesses, and attempt to uncover the truth behind the rising supernatural threats.

• Intersection with Shu and Kisara
  While Mikami does not directly engage with the main protagonists in combat, his investigations frequently lead him to cross paths with Shu Ogata and Kisara, particularly as they uncover darker truths about Bayron City’s infrastructure and demonic origins. Mikami’s perspective as a neutral but morally driven authority figure offers a grounded counterbalance to the chaos surrounding Shu’s life.