After Passing Through the Book, I Relied on Mathematics, Physics and Chemistry to Teach the Male Protagonist How to Behave.

Once I travel through time, I will soon become the soul of the male protagonist.../ The gender remains the same, the symbol remains the same - the heroine blocks the knife for me/ Cauchy's Inequality - The male protagonist bows to me/ Momentum theorem - the small world has become my possession! Purpose: Learn mathematics, physics and chemistry well, and you will not be afraid of traveling all over the world!