"Sisters of Wellber" is a fantasy anime series set in a fictional world where two kingdoms, Wellber and Greedom, are locked in a tense political relationship. The narrative centers on Princess Tina of Wellber, who flees her arranged marriage to Prince Greedom, a union intended to broker peace between the two nations. Tina’s escape is driven by her discovery of a conspiracy involving her fiancé and her desire to uncover the truth behind her parents' assassination. Accompanied by Rita, a skilled thief and bounty hunter, Tina embarks on a journey to seek justice and prevent a looming war.

The story unfolds as Tina and Rita travel across diverse landscapes, encountering allies and adversaries while evading pursuit from both Wellber and Greedom forces. Their journey is marked by a blend of action, intrigue, and character development, as the duo forms an unlikely bond despite their contrasting backgrounds. Tina’s royal upbringing and idealism contrast sharply with Rita’s pragmatic and street-smart demeanor, creating a dynamic partnership that drives the narrative forward.

Key supporting characters include Lieutenant Robert, a loyal soldier from Wellber tasked with retrieving Tina, and Prince Greedom, whose motives and involvement in the conspiracy remain ambiguous. The series explores themes of political intrigue, loyalty, and the consequences of war, as Tina and Rita uncover deeper layers of the conspiracy that threatens their world. The plot intertwines personal stakes with broader political conflicts, culminating in a climactic confrontation that tests the characters’ resolve and alliances.

The anime balances episodic adventures with an overarching narrative, blending elements of fantasy, adventure, and drama. The world-building incorporates a mix of medieval and fantastical elements, with a focus on the interplay between the two kingdoms and the moral complexities of their conflict. Through its exploration of trust, sacrifice, and the pursuit of truth, "Sisters of Wellber" presents a story that is both engaging and thematically rich.