"Scrapped Princess" is a 24-episode anime series that blends fantasy, adventure, and science fiction elements. The story centers on Pacifica Casull, a 15-year-old girl prophesied to bring about the apocalypse and destroy the world when she turns 16. Labeled the "Poison of the World," she is marked for death by the ruling religious order, the Mauser Church, which seeks to eliminate her to prevent the prophecy's fulfillment. Pacifica is rescued as an infant and raised by the Casull family, who treat her as their own. Her adoptive siblings, Shannon and Raquel, vow to protect her at all costs, forming the core of the narrative.

The series unfolds as Pacifica, Shannon, and Raquel are forced to flee their home after the Mauser Church discovers her identity. The trio embarks on a journey to evade relentless pursuers, including assassins, soldiers, and powerful beings known as Peacemakers, who are mechanical constructs serving the Church. Along the way, they encounter allies and adversaries, uncovering secrets about the world's history and the true nature of the prophecy. Pacifica's existence is tied to a deeper conflict involving humanity's survival and the remnants of an advanced civilization that once thrived before a catastrophic event.

Shannon, a skilled swordsman, and Raquel, a talented mage, serve as Pacifica's primary protectors. Their unwavering loyalty and combat prowess are tested repeatedly as they face increasingly dangerous threats. The narrative explores themes of family, destiny, and the clash between technology and faith. As the story progresses, Pacifica's role in the prophecy is revealed to be more complex than initially believed, with her fate intertwined with the world's past and future.

The series balances action, character development, and world-building, gradually unveiling the mysteries surrounding Pacifica and the world she inhabits. The interplay between the characters and the unfolding revelations about the prophecy and the world's history drive the narrative forward. "Scrapped Princess" combines personal stakes with larger existential questions, creating a compelling story that explores the consequences of humanity's choices and the resilience of familial bonds in the face of overwhelming adversity.