By using their manifested souls, they may directly attack the soul of another. Of course, once they devour their souls, they may temporarily take control of the new body. However, this cannot last for a long period of time, otherwise their souls will merge with the possessed body and they will no longer be able to return to their own. Additionally, this ability is a double-edged sword. Their spiritual sense isn’t particularly stronger than those of other demon clans. If they were to come across an opponent with a stronger spiritual sense, their lives would be thrown away.