Fu Pei, a "formula geek" from the Department of Mathematics at Ningcheng University, accidentally got involved in the e-sports club's tactical revolution when he used Fourier transform to crack the Rubik's Cube. Jiang Yuan, a cold captain suffering from post-traumatic stress disorder, discovered that this girl who could use the cosine theorem to formulate tactics could actually decipher his encrypted love letter written using the Fibonacci sequence.
