Ruan Mei is a top-tier Ice character from the Harmony Path in Honkai: Star Rail and, with the right build, can be a devastating force. A member of the Genius Society and one of the minds who helped develop the Simulated Universe, Ruan Mei acts as a support in combat to boost the effectiveness of Breaks across the entire team. Ruan Mei piggybacks on her team's Breaks to apply her own Ice DMG alongside the existing Break DMG.