Sweep Tosho is a Uma Musume character from Umamusume: Pretty Derby who presents herself as a 'Witch Lady' and self-proclaimed genius magical girl. Despite her selfish personality and tendency to ignore her trainer's instructions, she possesses genuine talent across multiple disciplines, including musical instruments and magical practices. She is known for quickly mastering skills and becoming bored with them just as fast, which stems from her exceptional intellect. In story events, she demonstrates her magical abilities through spells named after flowers, utilizing flower language to determine their effects. Though initially difficult to work with, she shows an unexpectedly kind side as a mood maker who can comfort others. Her character combines the archetype of a talented but difficult prodigy with magical girl aesthetics within the racing context of Umamusume.