Chen Ye (Flower of Gaoling, one of the top three in the comprehensive science class): "Tell me about this question."
Cheng Ying (a chatty girl who barely passed physics): "... I can't do it~"
Chen Ye: "Look at point B. According to Newton's third law balabala... Do you understand this?"
Cheng Ying: "... I understand."
Purpose: On a whim, I wanted to see if I could write a story.