Umi Prowler, a female fox from the Sonic universe, embodies the grace and cunning of her species. As Tails' older sister, she stands slightly taller than him, her fur a blend of soft oranges and whites that shimmer under the sun. Her eyes, a deep emerald green, reflect a wisdom and a hint of mischief that speaks to her adventurous spirit. Umi is often seen in a flowing white dress that sways with her movements, paired with black shorts for practicality, and white boots that allow her to move swiftly and silently. Around her neck, she wears a pendant containing a fragment of the Phantom Ruby, a powerful artifact that she guards zealously.

Umi's life is intertwined with the mystical energies of the Phantom Ruby, which she believes holds the key to unlocking the secrets of the universe. Her quest for knowledge and power is driven by a desire to protect her brother and their world from the threats that loom on the horizon. However, her path is fraught with challenges; the Phantom Ruby's power is coveted by many, including the cunning and ruthless Infinite the Jackal, who sees it as a means to further his own dark ambitions.

Despite these obstacles, Umi remains steadfast, using her intelligence and the Ruby's power to outmaneuver her adversaries. Her unique trait is her ability to phase in and out of reality, a skill she has honed through her connection to the Phantom Ruby, allowing her to appear and disappear at will. This ability not only aids her in her quest but also adds a layer of mystery to her persona.

The conflicts in Umi's life are not just external but internal as well. She struggles with the moral implications of using the Phantom Ruby's power, fearing that it might corrupt her as it has others before. Yet, she presses on, driven by a fierce love for her brother and a determination to safeguard their future. Her journey is one of resilience and cunning, navigating the thin line between power and corruption, always with an eye on the horizon, where she hopes to find peace and understanding.