In the World of Immortality, I Became Emperor by Taking the Postgraduate Entrance Examination

Chen Xuan traveled through time with the [Absolute Learning] power and landed in the Qingyun Sect, a third-rate sect that was on the verge of collapse. Alchemy? He introduced standardized processes and catalysts to mass-produce top-quality elixirs. Refining weapons? He talks to you about material mechanics and energy loop integration. Arrangement? That's just an application of geometry in multidimensional space. [Easy and funny + invincible flow + daily life in the academy, see how the protagonist uses scientific dimensionality reduction to attack the world of immortality!