What's Wrong with Borrowing Future Cultivation? I'm Going to Be a Great Emperor!

Li Tianxuan transmigrates into a fantasy world and becomes an outer disciple about to take part in the Lingyun Sect’s entrance examination. The bad news: he has no double pupils, Supreme Bone, or sacred physique. He’s just an ordinary disciple. The good news: he will become an unparalleled Immortal Emperor! He will shatter the river of fate, live forever, and be invincible beneath the heavens! [Ding! Your future Immortal Emperor self knows how difficult cultivation used to be, so he has sent you a seed of karma to help you reach the summit sooner!!] [Ding! You are currently comprehending the Lingyun Qi Refining Art. Your future self has perfected this technique, and is now maxing it out for you…] [Lingyun Qi Refining Art (not yet started) → Lingyun Qi Refining Art (perfected)] [Ding! You are being suppressed by a Sacred Body. In the future, you create the Devouring Mystic Art and devour countless Sacred Bodies to attain the supreme Sacred Body. Your future self is now maxing it out for you…] [Ordinary constitution → Desolate Ancient Sacred Body + Supreme Bone + Double Pupils + Sacred Dragon Fortune…] Many years later, Li Tianxuan stands above the river of time, looking at the countless prodigies and great emperors defeated at his feet. He sighs: “How can you say I’m cheating? Compared to prodigies like you, born with all kinds of Sacred Bodies.” “All I can do is borrow my future cultivation achievements, get on the ride before paying the fare. Is there anything wrong with that?” “Everything I’ve achieved today is thanks to my own hard work!!” Then Li Tianxuan, having already surpassed his future Immortal Emperor self, throws a seed of the Dao into the river of time below, hoping to advance even further: “Whether I can reach even greater heights in the future depends on you… my past self!”