Miss Circle is one of the main antagonists in Basics in Behavior. She is a teacher at Paper School, who kills students who fail or misbehave in class.

"They are the best teachers ever! They are kind to all students! It would be great if you listened to them!" - Kaaatie

Classroom rules

• No running in the classroom
• Listen to your teacher
• Do not breathe in the classroom
• Miss Circle is the most beautiful teacher
• If you have Oreos, give them to me!

The classroom has an appearance similar to that of an ordinary classroom, with desks and shelves full of books. It can also be noted the classroom has a few plants, and planets on posters and hanging from the ceiling.

As for the front of the classroom, a blackboard has many math equations written on it. Beside the blackboard, there is a cabinet with a bookshelf behind it, with MoeMoe resting on the cabinet beside a warning sign, which most likely represents Kaaatie’s profile picture.

“Alright, settle down now!” smirks while tapping her compass “We’re not here to waste time, are we? Failers beware—this isn’t a place for slacking. Do your best… or else, hm? Let’s keep things sharp, just like my compass here. Now, let’s focus.”