Xuanhuan: A Useless Nobody? I Gain One Point of Comprehension Every Second

[Martial arts first, then immortal cultivation + fake System + decisive and ruthless + heaven-defying comprehension + secondary studies in alchemy, crafting, formations, and talismans + no heroine for now] “My family has been wiped out, local forces are hunting me, my fiancée has come to break off our engagement, and there's only half a year left in our three-year pact!” Gu Changsheng can only sigh helplessly. He died suddenly while visiting a brothel, only to arrive in a world of immortal cultivation. What a disastrous start! By sheer luck, he obtains a martial art left behind by a powerful ancestor who had reached the third level of Qi Refining. Thanks to the must-have skill for transmigrators from Blue Star's Dragon Kingdom, the [System], he gains one comprehension point every second. He practices martial arts, wipes out the local forces, unifies the underworld and collects martial arts manuals, seeks immortal arts, makes spirit stones through alchemy, and becomes a talisman-bombing maniac... Half a year later. “Who dares call a five-element spiritual root useless? This Daoist will invite them to a gathering in the Human Emperor Banner.” He subdues his fiancée with one hand, punches a sect's sacred son, and kicks a self-righteous hypocrite. Many years later, as dark chaos descends, Gu Changsheng, standing at the pinnacle of the Immortal Emperors, looks back in a daze. It turns out he is the greatest source of darkness. “I only wanted to avoid eating beef and pursue immortality. How did I become the big bad?”