Sharaku, a descendant of the ancient Three-Eyed Ones, bears a third eye on his forehead that awakens immense psychic abilities and a ruthless persona when unsealed. This eye enables him to summon the Red Condor weapon and command advanced technologies. In his default state—the eye concealed under a cloth binding—he appears innocuous, oblivious to his dormant powers and lineage.

In *Undersea Super Train: Marine Express*, Sharaku seizes control of the sunken Mu civilization, hurling the Marine Express and its passengers 30,000 years into the past via a time machine. Aiming to harness the train’s technology to dominate timelines, he enforces his rule over Mu by weaving sorcery with machinery, echoing cultural imperialism. After imprisoning Empress Sapphire, Mu’s rightful leader, he confronts resistance from both the train’s passengers and local rebels. His reign collapses when Adam, a robotic passenger, triggers the train’s destruction, ensnaring Sharaku in its fatal explosion alongside its inventor.

Other iterations preserve his core traits: as Dr. Sharaku in *One Million-Year Trip: Bander Book*, he manipulates time travel; as Prince Sharaku in *Blue Blink*, he embodies dynastic ambition; and in *Astro Boy: Omega Factor*, he reprises his tyrannical Mu prince role, clashing with Astro Boy. These narratives consistently frame him as a conqueror wielding technology or sorcery to dominate eras, underscoring motifs of power’s corrosive sway and history’s cyclical strife.

The last scion of his race, Sharaku inherits their legacy of ancient technological prowess. The cloth binding over his third eye suppresses his destructive impulses, yet its removal unleashes his manipulative, ambitious alter ego. This duality occasionally blurs his villainy, hinted in moments where allies like Chiyoko Wato seek to reignite his buried humanity.