Cultivation and Deduction: If I'm Not Invincible, Who Is?

Also known as: Invincible Deduction, Starting by Slaying a Little Fairy; I Can Control My Lifespan and Deduce Anything, So I'm Invincible; Top-Tier Deduction, One Sword to Battle the Heavens After spending twenty years in a world of cultivation, Lin Feng has secured a stable government job and is ready to live a quiet life. But on his first trip up the mountain, a little fairy who can't beat a monster tries to drag him down with her. Who else can relate? And a massive demon nearby is watching them like a hawk. In this crisis, Lin Feng awakens the Lifespan Deduction System. Any cultivation technique or martial skill can be isolated from the passage of time and deduced endlessly, with results achieved in an instant. Deducing mortal swordsmanship, he comprehends the Heaven-rank, top-grade Meteor Flash Sword Strike. Deducing basic swordsmanship, he comprehends the Heaven-rank, top-grade Seamless Sword Qi Slash. Deducing foundational movement techniques, he comprehends the Heaven-rank, top-grade Windless Dragon Step. And so, countless years later, Lin Feng stands at the pinnacle of all worlds, with the corpses of countless Immortal Emperors at his feet. He can't help but sigh, “Turns out, becoming invincible is pretty simple.”