A fierce demon fighter stands ready for battle, adorned with sharp, twisting horns and bound in heavy chains that clink with each movement. Purple flames dance around the demon's muscular form, casting an eerie glow that highlights the intricate details of its hardened skin. An ethereal pink energy pulsates, hovering around the demon's head, creating an aura of ominous power. The scene is captured in an anime, manga style, with detailed line work emphasizing the demon's intense expression and dynamic pose, set against a backdrop of a dark, smoldering battlefield with shadows stretching across the ground.