The Three-Eyed One (Mitsume ga Tōru)

Sharaku is the descendant of an ancient mythical tribe known as the "Three-Eyes," who allegedly thrived in Japan 10,000 years ago. These Three-Eyes possess extraordinary intelligence, allowing them to swiftly craft all sorts of tools and machines using their third eye. In addition to Sharaku's modern-day adventures, this manga implicitly delves into the rise and potential decline of a society through the history of the Three-Eyes.