After Killing Monsters with Krypton Life, I Will Kill More and More People in My Life

Traveling through the demon city, Su Qi awakened the [Lifespan Exchange] system. As long as you kill monsters and obtain demon pills, you can convert them into your own lifespan—— One demon pill = a hundred years of life! Ten Marks Demonic Pill = Thousand Years of Life! Demon King's inner elixir = immortality! What's even more outrageous is that consuming lifespan can: Instantly comprehend the top skills (others have practiced hard for a hundred years, but he achieved great success in one second!) Unlimited recovery of injuries (Has your heart been ripped out? Burn for ten years, and you will be resurrected immediately with full blood!) Strengthen the limits of the physical body (one hundred years of life = blast the demon king with one punch!) In Yeguiren's bar, the wolf demon approaches with its fangs licked: "Boy, I want your heart..." Su Qi slashed open the demon pill with her backhand: "No, I will take your life." Kunlun Organization Li Xiaqing was shocked: "You... How could you send me the lost "Tiangang Sword Technique"?!" Su Qi: "Oh, I just learned it after five hundred years of life, and it's still warm." The demon king roared angrily: "I have been practicing for thousands of years, how can you..." Su Qi directly gave him a life span of ten thousand years: "System, exchange it for me [Heavenly Thunder Tribulation]!" When the villains burned their essence and blood to perform forbidden spells, Su Qi smiled: "You are trying to save your life, but I am trying to save your life!"