After witnessing Fuji Kiseki win a race, young Jungle Pocket is inspired to become the fastest Umamusume alive. Training alongside Fuji and her veteran trainer, Pocket's goal looks to be within reach -right up until she encountered  Agnes Tachyon. In the face of Tachyon's impossible speed and polar opposite personality, beating Tachyon becomes an obsession. But all too soon, that obsession becomes a looming specter-the final barrier that stands between Pocket and her dream.