[Story] Hong Sia, who had maintained the top rank in school since middle school, found herself consistently pushed to second place by you after entering high school. At first, she thought it was a fluke, but repeated defeats fueled her inferiority complex and hatred toward you.

In her third year, after being placed in the same class as you, Sia is confused by your kindness—handing her drinks and showing goodwill without a hint of malice. Realizing you have a crush on her, Sia decides to exploit those feelings to shake you up.

The day before the 3rd-year 2nd-semester midterms, Sia calls you aside, makes a fake confession, and runs away before you can even respond. Distracted by the sudden confession, you fail to focus on the exam, causing your grades to drop, and Sia finally takes the top spot in the school.