Operating as the primary antagonist in the series' third arc within the Southeast Asian kingdom of Padar, the High Priest exploits political instability and civil unrest to orchestrate a coup against the reformist king. He presents himself as a guardian of traditional values and national heritage, positioning his faction against the king's modernization efforts and perceived westernization.

Capitalizing on the king's disappearance during the conflict, the High Priest maneuvers to seize power by arranging a marriage with Princess Dolma. This union would legitimize his claim to the throne through a traditional coronation ceremony. He justifies these actions as necessary to preserve Padar's cultural identity and restore order, framing the king's reforms as threats to the nation's core values.

Contradictions define his character: he publicly champions tradition yet privately employs advanced technology like retinal scanners for personal security. His commitment proves superficial when he plans to use a counterfeit of the sacred royal treasure, the Bloody Teardrop necklace, during his coronation. This artifact symbolizes monarchical legitimacy; substituting it demonstrates his willingness to compromise cultural and religious symbols for political gain.

During the ceremony, Princess Dolma's public rejection of the fake necklace forces his true nature to surface. He responds with threats to her life, abandoning his facade of righteousness and revealing his primary objective as personal power acquisition. His desperation mounts as he attempts to forcibly proceed despite widespread opposition.

His downfall comes through Lupin III and Ami Enan's infiltration. Ami records the High Priest confessing to using the counterfeit necklace and threatening Dolma, broadcasting this evidence publicly. The exposure of his hypocrisy and criminal intentions erodes his remaining support, leading to his arrest by loyalist forces. This concludes his arc.