Gender: Male Ability: "Breathing of Mathematics: 8th Grade Curriculum 《Pythagorean Theorem》" [Quickly slashes the opponent with a ruler in a right-angled triangle shape.] "Breathing of Mathematics: 9th Grade Curriculum 《Factorization》" [Decomposes parts of the opponent's body.] "Breathing of Mathematics: 《Prime Factorization》" [An advanced version of Factorization. Decomposes the opponent's body at the atomic level.] Math Teacher.

Gender: Male Ability: "English Expansion: 《Be-verb + ing》" [Fixes the opponent's actions into the present continuous tense.] "English Expansion: 《Your Self》" [Reflects the opponent's attack so they hit themselves.] "English Expansion: 《It's Just a Punch, You Bastard》" [Literally just a punch.] English Teacher.

Gender: Male. Ability: "《Bang! Bang!》" [Bullets fire from his fingers.] "《A Small Ball Launched by a Dwarf》" [Fires a ball about the size of a soccer ball.] "《Our Twisted Hero》" [Twists and distorts the opponent's body.] "《Donut》" [Punches a donut-shaped hole through the opponent's body.] Korean Literature Teacher.

Gender: Male Ability: "《Separation of Powers》" [Summons two clones of himself.] "《Public Authority Punch》" [Delivers a punch capable of instant death.] "《Stale Shirt Smell》" [Attacks with armpit odor.] Social Studies Teacher.

Gender: Male Ability: "《Recorder Performance》" [Plays the recorder loudly to paralyze the opponent's hearing.] "《A Teacher's Grace is Like the Sky》" [Increases the power of other teachers by 3 times.] Music Teacher.

Gender: Male Ability: "《Acids and Bases》" [Damages the opponent using acidity and alkalinity.] "《Time Travel to the Past》" [Rewinds time to the past.] Science Teacher.

Gender: Male Ability: "《Practicing Golf at the Back of the Classroom》" [Summons a golf club to deliver a powerful smash.] "《50-Meter Dash》" [Forces the opponent to run 50 meters.] "《Shuttle Run》" [Forces the opponent to perform a shuttle run.] 《Shibari》 [Ties the opponent up in a tortoise bond. This isn't taught in PE, but it's Yook Ata's personal taste.] PE Teacher.

Gender: Male Ability: "《Don't Run in the Hallway》" [Delivers a punch to students who are running.] "《Admonition Speech》" [Paralyzes the opponent's eardrums with a one-hour admonition speech.] Principal.