Arumama is an eight-year-old mare bred in Japan and trained by Shinji Kudo. Sired by Orfevre and out of Whale Capture, Arumama has yet to win a race in 22 attempts. In her most recent outing on November 3rd, 2024, at Kochi, Arumama finished third behind Apsara, ridden by jockey Shirono Chikanao.