How Did I, an Investigator, Become a Martial Arts Master?

This is the best of times and the worst of times. Science and rationality, ignorance and madness, industry and transcendence. In a world intertwined with various dangers, Xu En traveled through time and became a poor investigator chased by mystery and death. It also has a golden finger that allows you to learn any martial arts by consuming attribute points. Since then, the investigator's style has gradually collapsed... Investigator: High-power guns are very effective against flesh-and-blood monsters, but unfortunately they are short of ammunition. Xu En: If you don't understand, tell me about the infinite six-meridian divine sword. Lord of the Blood Clan: I have drained three thousand people, and I am one step away from the original bloodline! Xu En, who had achieved great success in the Beiming Divine Art, clapped his hands: Not bad, but what about yesterday? Old Apostle: The stars have returned, and our Lord, the omniscient and omnipotent great being who unites all things, is about to awaken... Xu En: Haha, is He like this in your place? It's completely different here. If you have the courage, keep watching. Great Being: Beat the old soul with three punches, sir, I am the local god! Xu En: Before I time-travelled, my investigators were chased by you, and it was still the same after I time-traveled. So I didn't time-travel in vain? … Many years later, when the last mystery in the world was captured by Xu En, the world respectfully called him: The legendary investigator, the pursuer of the past, the manifesting fist, the embodiment of truth, and... The human warrior god!