Yuu Katsuragi

Yuu Katsuragi has been by protagonist K's side since childhood, quietly watching over him and holding deep feelings for him throughout the years. When K became entangled in the perilous underground mahjong world, she chose to step directly into the gambling arena, demonstrating a resolve that put her own life on the line for his sake. Though her mahjong skills are far from exceptional, her unyielding spirit allowed her to overcome crises time and again, making her the most vital emotional pillar in K's life.