As the sharp knives slashed across the villagers' wrists, blood trickled down from their open wounds, instantly bathing the entire ground with crimson red blood.
Kimura Kazuki's expression turned ghastly pale when he witnessed this bone-chilling scene.
Human Body Tactical Formation! These four words instantly came to his mind.
Generally, tactical formations required reiki activation, while the era of dilute reiki depended on jades with good quality. However, there was a kind of tactical formation that did not require any jade or Spiritual Stone.
It was the Human Body Tactical Formation. This tactical formation was commonly used by the cults as it relied on the essence of human beings, which were the human blood and soul. The Human Body Tactical Formation required human blood and soul as the stimuli to be activated and function. It was extremely sinister and activating this type of evil tactical formation required certain specific elements.