Meteora Österreich originates as a non-playable character from the open-world role-playing game Avalken of Reminisce. In her original story, she is known as the Sage of the End of the World and serves as the librarian of the Kunst Wunderkammer, a library located on the Last Tableland. Her purpose within the game is to provide lore, guidance, and translation of ancient texts to players, making her a passive figure focused on knowledge rather than combat. She is brought into the real world alongside other fictional creations by the antagonist Altair, an event referred to as the Catastrophe. Upon arriving, she learns that her creator, the planner of Avalken of Reminisce, has already died, leaving her without a living author connection like many other summoned characters.

Meteora’s personality is defined by her intellectual, analytical, and stoic demeanor. She speaks in a slow, flat, and monotone tone, often appearing emotionally detached. However, beneath this calm exterior, she is kind and considerate toward her allies. She makes deliberate efforts to connect with others emotionally, most notably through attempts at puns and jokes, which are consistently terrible and unintentionally awkward. This contrast between her serious nature and her failed humor becomes a defining and endearing trait. Another unexpected aspect of her character is her strong appreciation for real-world food, which she enjoys with noticeable enthusiasm. Her motivation throughout the series stems from a desire to understand her own existence as a fictional entity navigating reality, and to protect the world of her creator, whom she respects for the care put into crafting her game. She holds a firm belief that her game was created well and works to defend the creators who make such stories possible.

In the story, Meteora quickly becomes the tactical leader and strategic mind of the group around Sota Mizushino. She is one of the first to analyze the rules governing the real world and how the abilities of the Created interact with physics. She uses her observational skills to deduce Altair’s origins and capabilities, formulating countermeasures. While she is not a frontline combatant, she provides essential support by generating magical shields and using flight to maneuver. Lacking direct offensive magic, she compensates by employing real-world artillery and weapons when necessary. Her role is that of a guide and planner, helping the group make informed decisions rather than acting impulsively.

Meteora’s key relationships include Sota Mizushino, to whom she acts as a mentor and intellectual supporter, helping him rationalize his fears and take responsibility. She works closely with Selesia Upitiria, whose bold and action-driven nature complements Meteora’s calm and analytical approach. She also interacts with Takashi Matsubara, Selesia’s creator, discussing the nature of storytelling and creation, which highlights her deep self-awareness. Her primary antagonist is Altair, and Meteora is instrumental in understanding and countering Altair’s overwhelming power.

Meteora’s development focuses on her emotional and existential growth rather than physical power escalation. She confronts the reality of being a fictional creation with a deceased creator and grapples with questions of purpose and identity. Despite this, she adapts to the real world with remarkable ease, embracing the logical implications of her situation. She proves that wisdom and composure can be as effective as raw strength, and throughout the series she becomes a stabilizing force for her allies.

Her notable abilities include flight and the creation of magical shields for defense. She wields a tome as a focus for her magic and relies on her intellect and planning as her greatest assets. Her powers do not evolve significantly; instead, the narrative emphasizes her growth in understanding and emotional connection.