Karim is a notable character from the science fiction anime Jyu-Oh-Sei. She is a young woman with distinctive physical features, including green eyes and long red hair that reaches her chest, which aligns with the appearance of an adult female. She serves as the second-in-command, a position of significant authority within a group known as the Zagi, a faction of outcast children and warriors. Her standing as the second to the group's leader, Zagi, marks her as a capable and trusted individual in the harsh social hierarchy of the planet Chimera.

Within the narrative, Karim is initially defined by her deep and long-standing devotion to Zagi, having harbored romantic feelings for him since their first meeting. This devotion places her in a complex dynamic, often characterized as a destructive or masochistic relationship, where her loyalty persists despite Zagi's often cruel and arrogant behavior toward her. Her personality reflects a mix of strength and vulnerability; she is perceived as a strong and independent woman, yet her emotional world is heavily tied to the affections of the men in her life. This internal conflict becomes a central aspect of her character when she encounters the protagonist, Thor.

Karim's role in the story becomes pivotal when she and Thor are trapped together in a frozen, desolate location. In this situation, her initial rage and despair transform as she rediscovers a will to live that was lost after being cast aside by Zagi. Thor saves her, and a relationship quickly blossoms between them. Karim falls for Thor, creating a romantic dilemma as she finds herself loving both Zagi and Thor simultaneously. This relationship, however, is noted for its rapid and superficial nature, with Karim's affection for Thor being initially based on his physical beauty. Despite this, her connection with Thor is a crucial part of the story's second half, serving as a principle reason for Thor's subsequent emotional reactions and conflicts with Zagi.

Throughout her development, Karim largely remains defined by her relationships with these two powerful male figures, Zagi and Thor, acting as a love interest whose primary narrative function is tied to their emotional journeys. Her motivations are consistently driven by a desire for love and belonging, first seeking it from Zagi and then finding it with Thor. In terms of notable abilities, she is acknowledged as a skilled member of her group, being Zagi's second-in-command, which implies competence in the survival and combat skills necessary to navigate the dangerous world of Chimera. Her leadership position in a race against Thor and his companions demonstrates her strategic and physical capabilities.