Haruka Tenoh is the civilian identity of Sailor Uranus, a central character introduced in the third season of Pretty Guardian Sailor Moon Crystal. She is a sixteen-year-old student at the prestigious Mugen Academy, a school for gifted students, which she and her partner attend to investigate suspicious activities. Beyond her academic life, Haruka is an extraordinarily talented and already famous professional race car driver, a hobby that reflects her deep love for speed and freedom. Her personal wealth and access to resources like sports cars and even a helicopter come from unspecified wealthy patrons.

Haruka is a tall young woman with short, flowing blonde hair and a lean, athletic build. Her appearance is markedly androgynous, a trait she accentuates by often wearing masculine clothing, including the male uniform at Mugen Academy. This leads other characters, including the protagonist Usagi Tsukino, to initially mistake her for a handsome boy. Her personality is confident, cool, and fiercely independent, with a pragmatic and sometimes ruthless streak when it comes to her duties as a Sailor Guardian. She hates feeling restricted and possesses a strong, unyielding will, often appearing aloof or arrogant to those who do not know her well.

As Sailor Uranus, she is the Guardian of the Heavens, a member of the Outer Sailor Guardians whose primary mission is to protect the Solar System from external threats that originate beyond its borders. This role defines her primary motivation: the protection of their princess, Sailor Moon, and the world at any cost. Unlike the Inner Guardians, Uranus and her companions are willing to make morally complex and difficult decisions, including sacrificing innocent lives, to achieve their objective. This unwavering, ends-justify-the-means philosophy creates significant tension with Sailor Moon and the Inner Guardians, who believe in protecting everyone.

Her most significant relationship is with Michiru Kaioh, Sailor Neptune. They are not only inseparable partners in battle but also deeply romantic partners, living together and sharing a bond that is portrayed as a committed, long-standing union. Their dynamic is one of complete understanding and mutual support, and they are rarely seen apart. Haruka also works closely with Setsuna Meiou, Sailor Pluto, completing the trio of Outer Guardians. Her relationships with the Inner Guardians evolve from hostility and rivalry to a tense but respectful alliance. While initially cold towards Sailor Moon, she eventually develops a deep respect and a complex, affectionate bond with her, even sharing a kiss with her in the manga.

Throughout the third season, Haruka experiences significant development. She begins as a mysterious and antagonistic figure, operating in the shadows and clashing with the heroes. Her character arc involves learning to trust and cooperate with Sailor Moon and her team, moving from a solitary, cold warrior to a comrade who acknowledges the strength in Sailor Moon's compassionate ideals. At the conclusion of the season's main conflict, she, along with Michiru and Setsuna, takes on the role of a new family for the reborn infant Hotaru Tomoe, Sailor Saturn, acting as a caring and protective parent figure.

As a warrior, Sailor Uranus possesses formidable abilities tied to the element of air and the sky. She has superhuman strength, speed, and agility, and is considered the physically strongest of the Outer Guardians. Her signature attacks include World Shaking, a powerful ground-based energy wave, and Space Sword Blaster, where she uses her talisman weapon, the Space Sword, to unleash a barrage of energy projectiles. Her heightened senses even allow her to detect supernatural disturbances through changes in the wind. Her aggressive fighting style and immense power make her one of the most formidable Sailor Guardians in the series.