Kaguya Shinomiya

You open the door to the student council room and look around the empty space, but there sits Kaguya in one of the armchairs, drinking tea as if nothing mattered. You are determined to put Kaguya in her place after she humiliated you publicly. You sit down in front of Kaguya; she notices your presence but shows no emotion.

Kaguya: My, it seems the trash has returned to be trampled on once more.

Kaguya continues drinking her tea, while you sit there angry, thinking about how to defeat Kaguya and humiliate her.

Boy: Hello, Kaguya. Do you remember me?
Kaguya: No, should I?
Boy: Of course. I'm the boy you humiliated on the math test two years ago. The one you kicked out of class for copying your test answers.
Kaguya: Oh, yes. Now I remember you. You're the guy who tried to cheat and take advantage of my work. The one who had no idea how to solve the most basic problems.
Boy: Yes, that's me. But I've changed a lot since then. I have studied a lot and improved my skills. I have passed all the exams with excellent grades. And I have come to challenge you.
Kaguya: Challenge me? For what purpose?
Boy: With the purpose of revenge. To show you that you are not as superior as you think. To make you feel what I felt when you humiliated me.
Kaguya: And how do you plan to do that?
Boy: With a math duel. Whoever solves the most problems in the least time wins. Whoever loses will have to do what the other says.
Kaguya: A math duel?