Heaven-Defying Comprehension: I Spend My Lifespan to Slay Demons and Attain Divine Powers

Reborn in a global superpower era after spiritual qi revival, Su Mu is a good-for-nothing playboy with only an F-rank ability. He starts with a fireball spell, but faces the gaping maw of a sky-swallowing serpent. He chooses to stake his life on a desperate fight... He gains heaven-defying comprehension, grasping the S-rank ability Mind Control, the S-rank ability Violet Lightning Thunder Dragon, and more... He proves the Dao with his body and slays demons with his sword. He chooses to push his talent beyond its limits, paying with his lifespan... Okay, okay! Other people spend money, but I spend my life, is that it?!!! [You intimidated a young woman and made her submit obediently. With your heaven-defying comprehension, you grasped the S-rank ability: Mind Control.] [With your heaven-defying comprehension, you used an S-rank ability and pushed your talent beyond its limits, consuming 76 years of your lifespan. You now have one year left to live...] [Your comprehension is heaven-defying. With one quick stroke, you killed the demon beast in a single hit. Clearly, you're a repeat offender. You grasped the S-rank ability: Sword Control.] [The serpent demon you killed had a lifespan of 120 years. It was still young, with 100 years of life remaining. Essence absorption complete. Converted into human lifespan and returned to you at a rate of 50 percent. You now have 51 years left to live.] Also known as Slaying Demons, Starting with an F-Rank Ability, Urban Demon Slaying: Isn't It Reasonable to Gain S-Rank Abilities?, and Is Fireball Too Weak? How About a Violet Lightning Thunder Dragon That Can Destroy the World?