Cultivation, Physics!

Lin Xiaoyue, a doctor of engineering in the 21st century, died unexpectedly while staying up late to work on a project, and her soul passed through the body of a useless girl with low qualifications. Facing Reiki? She chose to use Maxwell's equations to analyze; facing alchemy? She is committed to purifying active ingredients and optimizing reaction equations; facing the strategy? She tried reconstruction using topology and calculus. As a result, the serious world of immortality was turned upside down by a scientific madman who talked about "energy conservation" and "variable control". And her opponents, from looking down on her fellow disciples, to the Demon Lord who doubts life, and... The cold master who wanted to clean up the family from the beginning, but in the end just wanted to "study" her thoroughly.