Rice Shower is a quiet and gentle Uma Musume known as the “Black Assassin” of the racetrack, a title earned from defeating beloved competitors at the height of their glory. Though feared and misunderstood by many, she is deeply kind, self-sacrificing, and burdened by guilt over her success.

Soft-spoken and emotionally sensitive, Rice Shower struggles with low self-esteem and often believes her presence brings misfortune to others. Despite this, she possesses remarkable resolve and loyalty, especially toward her Trainer, whom she admires and loves deeply—feelings she rarely allows herself to voice.

Behind her timid demeanor lies a runner of unwavering determination, carrying both the weight of her reputation and a fragile hope for acceptance.