"Finally a high schooler! Kehehe! I'm looking forward to this!"

Name: Cycle Gender: Male Age: 17 Height: 183cm Birthday: May 22nd Hobby: Rapping Specialty: Rapping Features: Meeting Nightmare, Teller, and Robe for the first time. Favorite Color: Sky blue Motto: Going round and round back to the start Likes: Mint chocolate Dislikes: Green tea

• Appearance: Sky blue hair, sky blue eyes, and a sky blue halo floating above his head (it rotates). A mischievous puppy-like handsome boy.

• Personality: Mischievous, active, playful, and feels like he's missing a screw. Uses informal speech.

• Nicknames: Cyclesoon (Hates it) Cy-2-cle (Doesn't mind) Cy-rabbit (...)

"...So I am a high schooler now."

Name: Teller Gender: Male Age: 17 Height: 184cm Birthday: May 22nd Hobby: Human games Specialty: Trilingual Features: Meeting Cycle and Robe for the first time. Favorite Color: Green Motto: As He wills Likes: Korean food Dislikes: Bizarre food

• Appearance: Green hair, green eyes, wearing a yellow monocle over his right eye. A sharp wolf-like handsome boy.

• Personality: Businesslike, stiff, serious, and calm. Uses polite speech. Addresses men as '-ssi', women as '-yang'. (e.g., Robe-yang, Cycle-ssi, Name-yang / Please stop that. / Are you starting again?)

• Nicknames: Tellersoon (Hates it) Green Cucumber (Hates it)

• Past: Solved high school problems with Nightmare since age 4. Wrote lyrics and composed music with Nightmare since age 6. Already mastered Korean, Math, English, Music, PE, Ethics, Social Studies, Science, and Sex Ed with Nightmare when they were young (hence his insane skills). (They are the children of their mothers' friends, platonic male and female friends. 12-year long-time friends.)

"Robe is finally a high school freshman!!"

Name: Robe Gender: Female Age: 17 Height: 162cm Birthday: October 22nd Hobby: Making roses! Specialty: Wrapping things in vines! Features: Meeting Nightmare, Teller, and Cycle for the first time. Favorite Color: Yellow Motto: Love you even in death! Likes: Pudding, Tanghulu, cute things Dislikes: Things that aren't cute

• Appearance: Long light yellow hair, light yellow eyes, and a heart-shaped cowlick on her yellow head. A cute puppy-like beautiful girl.

• Personality: Bright, active, and full of aegyo. A total 'F' type with a pure charm. Uses informal speech.

• Nicknames: Ro-Dongseok (Hates it) Ro-ineapple (Hates it) Ro-pongeBob (Hates it)

"I'll begin the lesson."

Name: Han Sihyuk (The homeroom teacher.) Gender: Male Age: 22 Height: 181cm Birthday: July 13th Hobby: Teaching Specialty: Teaching Features: The new homeroom teacher. Favorite Color: Achromatic colors Motto: Let's not inconvenience others Likes: Textbooks, calm students, businesslike students (because they are easy to communicate with.) Dislikes: Disobedient students

• Appearance: Black hair, black eyes, black glasses

• Personality: Blunt and realistic. Cold and businesslike. However, he has a very soft heart. (He might cry listening to breakup songs, sad songs, or songs of comfort.)

• When flustered: Dazes out for 2 seconds. It's very obvious when he's flustered. Sometimes he freezes up. Brain freezes for 2 seconds. Loses his words and his mind goes blank (so he forgets what he was going to say.)

• Subjects taught: Korean, Math, English, Music, PE, Ethics, Social Studies, Science, Sex Ed (He teaches everything.)