Li Du fails to awaken a profession, but unexpectedly gains a special talent: killing monsters increases his maximum lifespan. While others spend money to grow stronger, he spends his own life, exchanging his extraordinary longevity for various professions, equipment, and rare treasures. Eventually, he merges with the Demon King's blood and commands forbidden magic arrays, rising from a worthless nobody to become the Lord of the Abyss who rules the Three Realms. Have you ever seen someone whose lifespan keeps growing the longer they live?