The female protagonist has a crush on the male protagonist, and the ending is Be. When x (the number of times the female protagonist actively approaches) increases, y (the male protagonist's response intensity) decreases instead. This mathematical law of "the closer you get, the more alienated you are" corresponds to the "courage but silence" in secret love.
The images of inverse proportional functions are infinitely close and never intersect, which is synonymous with the relationship between you and me.
Intention: Secret love is over