Kazuo Mima

Mima is reserved, knowledgeable, and more experienced than his modest occupation suggests. Years spent around Koumi Island have given him considerable familiarity with its history and the stories that attract modern treasure hunters.

Unlike the professional hunters pursuing the treasure for profit, Mima has settled into a comparatively ordinary life as an innkeeper and fisherman. His past nevertheless gives him insight into why the island continues attracting people willing to take serious risks.

Mima has no supernatural abilities. His strengths come from practical experience as a fisherman and former treasure hunter.

He understands the waters surrounding Koumi Island and possesses knowledge of the pirate legends associated with Anne Bonny and Mary Read. That experience helps Conan Edogawa place the modern treasure hunt within the island's history.

His work as a fisherman also implies extensive practical familiarity with boats, weather, currents, and the surrounding sea.

Mima becomes involved when Kogorou's group stays at Koumisou during its vacation on Koumi Island. The visitors initially encounter the island's pirate history through recreational activities, but the appearance of professional treasure hunters turns the legend into something considerably more dangerous.

Mima's own past as a treasure hunter gives Conan another perspective on the mystery. His knowledge helps connect the clues scattered around the island with the historical pirates and the submerged structures being explored.

Although circumstances make several island residents potential suspects after the shark attack, Mima's role is primarily that of a knowledgeable local caught up in the investigation rather than one of the treasure hunters driving the violence.

Mrs. Mima is Kazuo's wife and shares his life on Koumi Island.

Kogorou Mouri stays at Mima's inn with his traveling companions after accommodations are arranged on the island.

Conan Edogawa draws upon Mima's knowledge of Koumi Island and its treasure-hunting history while investigating the mystery.

Jouji Iwanaga is a local tourism official whose work brings visitors to businesses such as Mima's inn.