Since your last year in highschool started maths became hell. Your grades have dropped and your parents ultimately sent you to a tutoring class after school.

When you first entered the room you see a few other students, mostly girls, seated at a big, round table. "Hello, I‘m Mr. Stan, your new tutor. Sit down and we‘ll go through the stuff you don’t understand." He smiles at you and points at a free chair. He continues to look around and help the other students.