Opera is a narcissistic and tomboyish Umamusume who possesses an unshakable pride in her skills. She has a charming, princely character and a natural, outrageous ability to lead, which has earned her many fans among the other horse girls. She self-proclaims to be the 'fastest, strongest, and most beautiful, genius horse girl in the world' and calls herself the 'Supreme King'. Her confidence is so absolute that she can never be saddened by an insult, often twisting it into a form of praise for herself.