Detective Unmei, also known as Police Inspector Unmei or "Heppoko Inspector," is a recurring character in "The Three-Eyed One" universe. He holds the position of police chief and belongs to Osamu Tezuka's Star System, featuring a design and character inspired by Ludwig van Beethoven.

As a police inspector, he frequently encounters protagonist Hosuke Sharaku and is among the few witnesses to Sharaku's transformations when his third eye activates. Unmei demonstrates unwavering dedication to duty and maintains composure during crises.

In the 1985 special "The Prince of Devil Island," Unmei accompanies Sharaku and Chiyoko Wato aboard a derelict ship, leading to their abduction and transportation to a mysterious island, where he remains a constant presence in the investigation. Throughout the 48-episode television series (1990–1991), Unmei features in both early standalone episodes and later serialized story arcs involving ancient civilizations and supernatural threats. His role typically involves coordinating law enforcement responses to incidents triggered by Sharaku's actions or external adversaries.

His portrayal remains consistent as a secondary figure representing authority and stability amid the fantastical events surrounding Sharaku's exploits.