Yuki lost everything—his family slaughtered, his wife torn from him, and his will to live crushed. Just as he’s ready to end it all, a mysterious woman offers him power. But there’s a price: to grow stronger, he must share his body and soul in ways he never imagined. Now caught between demons, heroes, and forces beyond his understanding, Yuki’s path to revenge twists into something darker. Every encounter, every choice, pulls him deeper into a world where survival demands sacrifice—and love can become both weapon and curse.