After I Used My Brain to Cultivate Immortality, the Demon Lord Went Crazy

The leader of the righteous path and the Supreme Demonic Path fought bloody battles for three days and three nights, and their power was astonishing. At this moment, an emotionless electronic synthesized voice suddenly sounded between heaven and earth: "Energy fluctuation analysis... The target 'Demon Lord', the peak spiritual power output has dropped by 23.7%. The weak point is located three inches below the left rib. The best attack opportunity is 12.7 Seconds later. Do you want to adopt it?" The leader of the righteous path was stunned, and the Demon Lord vomited blood: "Who! Who is disturbing the secret of heaven?!"