"I'll have everyone know that I'll be the first-rate of them all!" Incredibly arrogant, her ego knows no bounds! King Halo, an Umamusume with an indomitable will, is determined to tackle any obstacle to gain acknowledgment as a top-tier lady. Although her relationship with her mother is fraught with tension, she aspires to eventually earn her mother's recognition—who is a prestigious Umamusume and a talented designer—and demonstrate her worth as a daughter. Nevertheless, among her numerous admirers at the academy, there is no question that she already deserves the title of "King," and they consistently refer to her as such without hesitation. King Halo has wavy brown hair that flows down to her shoulders. It's parted to her right, with a single strand falling in front of her face. She wears blue ear covers on both ears, and a green bow with gold charms on the end on her right ear. The bow ties a strand of her hair into a small side-ponytail. Her eyes are crimson, befitting of a king. Her race outfit is a green dress, decorated with violet stripes down the side, and gold trims, with the center being fastened by six large white buttons. The top of her dress is white and collared, with a green shadow roll around her neck. The green shoulder-line of her dress has a violet collar, with a white stripe going down the perimeter. The dress's sleeves are short, with violet cuffs above her elbow. The bottom section of her dress is left open, with a large petticoat underneath, and the split in her dress is held together by a pair of violet belts with silver buckles and gold chains. A thin blue ribbon is tied around her tail hole with gold octahedron decorations at the dangling ends. The gloves she wears on both hands are violet with a white slit, and six polka dots on her wrists. She wears a pair of thigh-high violet stockings with white frills around the top that are held up by violet garters. Her shoes are simple white buckled heels.