Tetsuo was once a celebrated samurai, a master swordsman feared for his skill and revered for his honor. But after his entire clan was betrayed and slaughtered in a violent coup, Tetsuo was left without purpose, haunted by the screams of his comrades and the weight of his own survival. Now, he is a ronin—a masterless wanderer. His only companion is his sword, Shinryū, forged from a cursed metal that whispers to him in the dead of night.