|Romaji Name||Dōchin Kōtarō|
|Kanji Name||堂珍 光太郎|
|Affiliation||Detective Agency, Akutabe, Sakuma|
|Anime Debut||Season 1, Episode 7|
Kotaro is a junior highschool student and a demon summoner under the care of Akutabe. He is currently the contractor of Gusion.
"The grandson of Akutabe's old friend. In the wake of his grandfather's death, and because he has no other relatives left, he was taken in by Akutabe. He took one of his grandfather's high ranked magical grimoire and made a contract with the demon Gusion. A junior high school student that loves peeping on naked women." Kotaro's Official ProfileHe's very mischievous and has a mean streak, often plotting against Akutabe or trying to outsmart him, however he isn't very smart and his plans often backfires. He tries to act like a good, innocent child in order to manipulate people, but this never works as everyone easily see through his act. He often complains about how neither of the adults surrounding him help him with his problems, even though he constantly causes them himself. He has a fascination with naked women, and a running gag is how easily distracted he becomes when there's porn involved.
He is a young boy with black, spiky hair. He often tries to look sweet and innocent, though many times this fails. He almost always wears his school uniform.
Powers & Abilities Edit
As a contractor he is able to interact, see and summon all kind of demons.
- In the tv anime, his background is different: Akutabe says that he took him in because of some guy that owned him money. It's likely that this change was because of time and budget constrains, as the manga explains that Kotaro is the grandson of a old friend of Akutabe's.
- In the manga, it's implied he lives with Akutabe in the detective agency.