How did an all-rounder and a top student blow up the exam room? How did you make the teacher angry? How did the research activities break up? When did they start getting closer to each other? When did you start to get to know each other? When did you start to be obsessed with each other? In fact, they have become accustomed to each other's existence without knowing it.
The preface is in "The False Sutra". Go read it.
Intention: leisurely