Yuka Ozenji is a fictional character from the Babel II franchise. Trained in martial arts and wielding telekinetic abilities as a skilled esper, she first appears aligned with the antagonistic organization Psychic Labora. This affiliation, however, masks her true purpose: she operates as an undercover agent actively working against the group. This deception forms a core narrative element, revealing her strategic infiltration.

Her character arc transitions from perceived antagonist to revealed ally, committed to opposing the Psychics. She consistently protects the protagonist, Koichi Kamiya, intervening to save him from danger multiple times. Her actions significantly impact the conflict against the primary antagonist, Dr. Psyche, establishing her as a key figure in the overarching struggle.

Personality traits indicate strong moral conviction, particularly in defending her beliefs and protecting others. She demonstrates independence and combat effectiveness, frequently engaging in confrontations to safeguard allies. Her relationship with Koichi Kamiya adds complexity to her portrayal, existing within the context of their shared battles against antagonistic forces.