Vivlos is a fictional character from the multimedia franchise 'Umamusume Pretty Derby,' which centers around anthropomorphized racehorses. Vivlos is depicted as one of the many 'Umamusume,' or horse girls, who are the reincarnations of real-life racehorses. In the series, Vivlos is known for her strong will and competitive spirit, embodying the traits of the legendary racehorse she represents. She participates in various races and events, striving to achieve victory and honor her legacy. Her role in the series highlights themes of perseverance and sportsmanship.