My Life Is Invincible, but My Life Span Is Endless

Chen Changle's college entrance examination was over, but he found that the world had changed drastically! He is surrounded by man-eating monsters! A black crow can knock down a 100-meter-tall building with just one roar! The fog dragon can easily set off a huge wave! And the eagle that spreads its wings and covers thousands of miles! This is not purely the end of the world! Fortunately, in this crisis, Chen Changle successfully awakened [Deduction Panel]! As long as you kill the monster, you can gain the opponent's lifespan, and then use these lifespans to deduce martial arts and strengthen yourself! An invincible master is born! Learned [Tongbei Changquan] from martial arts class, deduced the evolution → [Wushi Changquan] I have practiced [Fitness Sword] with my father for several years, deducing the advanced level → [Hunyuan Sword Technique] The [Demon Pill] obtained by killing the dragon can be deduced to evolve → [Atomized Spirit Dragon] Chen Changle himself was already numb. Looking at the strange creature that was 10,000 meters tall, his expression did not change: "It will take another five thousand years for Yan Linglong to transform! Yes, we need it now!" This book is also called "I Rely on Killing Demons and Killing Demons to Be Invincible" "After I failed the college entrance examination, I had no choice but to kill demons."