Shiromi's ability is based on the legend of Mayoiga, which takes place on Mt. Shiromi in Iwate. When Shiromi is worried for any reason, it directly causes her hand to become more expensive. She tends to slowly build her hand without opening it or calling riichi, leading to a distinctive play style. Shiromi is tactful when it comes to her opponents hands and has solid defense. She often discards what others call risky tiles, but it hasn't been shown to backfire on her.