The character known as the Bürgermeister, meaning Mayor in German, is a prominent political figure in the South Korean setting of the series who becomes the ultimate target of the parasitic creatures' infiltration plan. As a high-ranking public official, the Mayor represents the highest level of authority that the parasites aim to subvert, moving beyond simple predation to achieve systemic control over human society.

Very little personal background is provided for the Mayor, as the character functions primarily as a symbolic goal rather than a deeply explored individual. The Mayor is portrayed as an important enough figure to warrant a significant security presence at public events, suggesting a career politician with substantial influence in local government. No information is available about the Mayor's personal history, family, or life before the parasite invasion.

In terms of personality, the Mayor appears as a confident and public-facing leader accustomed to attention and ceremony. The character likely possesses the typical demeanor of an experienced politician, though specific personality traits are not explored in the narrative. The Mayor's primary function within the story is as a potential host body for the alpha parasite, making the character a walking symbol of what the parasites truly want: not just survival, but power over human institutions.

The Mayor's role in the story centers entirely on the climactic events of the series. The alpha parasite, Kwon Hyuk-joo, orchestrates an elaborate scheme to use a local music festival as cover to get close to the Mayor, who is the guest of honor. This plan involves eliminating other parasites at a location known as the Cannibal Larder to ensure the festival proceeds without interruption. The Mayor becomes the ultimate prize in the parasites' strategic operation, as taking control of such a figure would give them unprecedented access to and influence over human governance structures.

Key relationships involving the Mayor are almost exclusively with those trying to either protect or possess the character. Choi Jun-kyung and her Grey Team are responsible for ensuring the Mayor's safety during public appearances, though they are unaware of the specific threat targeting this individual. The alpha parasite views the Mayor solely as a prospective host body, with no personal connection whatsoever. Seol Kang-woo plays a crucial role in helping the Mayor escape during the festival attack, demonstrating that even a character outside official law enforcement recognizes the importance of protecting political leadership from parasite infiltration.

The Mayor undergoes no significant development throughout the series, remaining a consistent target rather than an evolving character. The narrative interest lies not in the Mayor's personal journey but in whether the parasites succeed in their takeover attempt. The successful protection of the Mayor during the festival sequence represents a victory for the human characters, though the Mayor themself contributes little to this outcome beyond being present.

Regarding notable abilities, the Mayor possesses no special powers, combat skills, or parasite-related capabilities. The character is entirely human and functions as a conventional political figure. Any abilities the Mayor might have would be those typical of a politician, such as public speaking and leadership, though these are not demonstrated on screen. The Mayor's significance comes entirely from political position rather than personal capability.