T.M. Opera O is a female Umamusume character modeled after the famous racehorse, depicted as a kemonomimi horse girl who competes in races. She excels with A aptitude in the Pace Chaser running style, performing best when positioned towards the front. Her unique skill 'This Dance is for Vittoria!' activates in 4th place or better during the final corner or later, with another runner nearby. Training her in the Unity Cup scenario leverages the Spirit Burst mechanic for enhanced stats and skill hints. Maxing her Potential unlocks strong skills like Killer Tunes for medium races. She features in storylines rivaling Narita Top Road, reflecting historic races. Her theatrical persona draws from jockey Ryuji Wada.