TV-Series
Description
Christa Renz is the assumed name of a young woman who would later be known as Historia Reiss, the true heir to the throne within the Walls. She is first introduced as a member of the 104th Training Corps, where she presents a carefully constructed facade to the world.

Physically, Christa is notably petite, standing at 145 centimeters tall with a slender build. She has long, blonde hair that is often worn loose, with a distinctive center bang, and large, expressive blue eyes. Her delicate and attractive features, combined with her overtly kind demeanor, lead many of her fellow trainees to informally refer to her as a "goddess."

Under her public identity of Christa Renz, her personality is that of a gentle, shy, and exceptionally selfless individual. She is always the first to offer help, whether bringing food to a punished comrade or volunteering for dangerous duties. She seems to embody kindness in a brutal world, seeking to be useful to others and wishing to be remembered fondly. However, this extreme altruism has a dark root. As Ymir, her closest companion, points out, Christa's goodness is a performance born from a lack of self-worth. Having been neglected and unloved as a child, she crafted this persona to gain the approval and love she was denied, believing that her existence was a mistake. This manifests in a suicidal tendency; she expresses a desire to die in a way that would ensure others speak well of her, seeing a noble death as the only way to give her life value.

Her backstory reveals that "Christa Renz" is an alias. Her real name is Historia Reiss, the illegitimate daughter of Rod Reiss, the true ruler of the Walls who possesses royal blood. As a child, she was raised in neglect on a remote farm, with her mother resenting her existence. After the fall of Wall Maria, her father attempted to bring her into the Reiss household, but they were intercepted by agents of the usurper government. To protect her, her mother was killed, and Rod forced Historia to take the name "Krista Lenz" and live in hiding before eventually enrolling in the military. This tragic childhood is the source of her deep-seated belief that she is an unwanted person.

Her primary motivation throughout the early part of her story is not survival or victory, but a search for meaning and a way to earn a loving memory through self-sacrifice. She plays the role of a saintly girl, hoping that by being perfect and helpful, her existence will finally be validated. This changes due to her profound relationship with Ymir, a cynical and abrasive fellow soldier who sees through her act. Ymir rejects the fake "Christa" and urges Historia to live for herself, with pride, rather than die for the approval of others. This relationship is the catalyst for her development, as she finds in Ymir someone who accepts her true, broken self.

In the story, Christa initially serves as a support figure, but her role becomes pivotal during the coup against the royal government. After being captured by her father, Rod Reiss, she is presented with a choice: consume Eren Yeager to inherit the power of the Founding Titan and become a goddess who saves humanity, or defy her father and live as an ordinary, flawed human. Remembering Ymir's words, she rejects her father's plan, choosing to live for herself. She then actively participates in stopping her father, who transforms into a massive, lumbering Titan, and delivers the final blow in front of the citizens of Orvud District. In the aftermath of the coup, she steps into her true destiny and is crowned Queen Historia Reiss, the ruler of humanity within the Walls.

In terms of combat abilities, Christa places 10th in the final graduation ranking of the 104th Training Corps, a position some, including Ymir, suggest was achieved through Ymir deliberately holding back to give her the spot. While not the most physically powerful soldier, she is described as being intelligent, a good horse rider, and proficient with vertical maneuvering equipment, though she is smaller and less enduring than many of her peers. Her true strength lies in her resolve and her capacity for personal growth, transforming from a suicidal people-pleaser to a decisive leader.