Using tarot card divination as a "learning diagnosis system", every time the heroine turns over a card, she can generate an executable learning plan or locate knowledge blind spots. But every time she divines comes with a forced "equivalent exchange" - the plan she divines must be taught to others without reservation, otherwise the cards will become invalid for three days. As a result, she got the most restrictive clause: binding the worst student in the class to be promoted together. While she was trying her best to "motivate" the school bully to do her homework, she had to face the destruction of the school bully's brothers who couldn't stand her "pretending to be a ghost", as well as her increasingly higher scores on the math paper.
