[This book probably won't fill in the gaps]
[The protagonist has a prototype, and the reality of the prototype has already been... So I probably won't write it unless they get back together QAQ]
Zhuoran x Cheng Guilin
What is the key to solving a geometry proof problem?
It's an auxiliary line.
Well, you are my auxiliary line.
You are my only right path.
The main point of view is Shou, who is a drawing madman and loves precise drawing.
There is a deputy CP, Lily, please pay attention to lightning protection.