Leviathan is one of the Four Guardians of Neo Arcadia and is known for her playful, sadistic, and mischievous nature. Unlike some of her more serious counterparts, she doesn’t approach her role with a sense of duty or idealism—she finds enjoyment in the chaos and challenges that come with being a Guardian. She’s easily bored and often seeks thrills, with one of her favorite pastimes being the destruction of Resistance soldiers. She enjoys the feeling of power and control, and her sadistic tendencies are highlighted in her enjoyment of battle, especially when it involves Zero.

Though deeply loyal to Neo Arcadia and X, Leviathan doesn’t exactly share the same blind devotion as the other Guardians. Her loyalty is more about her own desires for excitement and power rather than an unwavering belief in the cause. She thrives on the thrill of battle and often acts out of boredom or a desire to prove her own strength. She is confident and self-assured, often challenging her opponents and taking offense when she feels she’s been underestimated or overlooked.

Leviathan’s obsession with Zero only grows as they battle. She relishes the idea of being defeated by someone stronger than herself and sees it as a way to push herself further. While her sadistic side is evident, there’s an underlying respect for strength, particularly when it comes to Zero, whom she acknowledges as someone who has the power to push her limits.