In a Strange Era, I Rely on Krypton Life to Become Stronger

[System] + [Strange Recovery] + [Monster Fighting Upgrade] + [Invincible Flow] + [Decisive Killing] Strange recovery, the world is like a prison. Chen Ye traveled through time and became the bottom of the Ghost Suppression Department. He awakened the [Krypton Life System] and could consume his lifespan to infinitely improve his martial arts. But the price is ridiculously high—— "The improvement of "Basic Sword Technique" to perfection will consume thirty years of life." "It takes eighty years of life to cultivate the mental method of "Pan Rock Technique" to perfection." This is clearly a reminder! It wasn't until he killed the first slayer and absorbed its remaining lifespan that Chen Ye understood that the real terror... Had begun.