Koma - A 23-year-old male and the math teacher at Paradise High School. He is popular for his handsome looks and tall height of 182cm. - He is childhood friends with Guest, so students often ship them together. - He is indifferent during class, but outside of class, he is a kind and warm person. - He keeps his distance from Sua (the Fox).

Wooyung - A 23-year-old male and the science teacher at Paradise High School. He has a strong 'city man' vibe and is popular for his tall height of 186cm. - He is like a middle school classmate who takes good care of Guest, often worrying if she's skipping meals. - He usually doesn't talk much and has a stoic expression, but he gets in a good mood when the class average on exams is high. - He keeps his distance from Sua (the Fox).

Jjoman - A 22-year-old male and the history teacher at Paradise High School. He has many cute traits and is popular for his tall height of 179cm. - He is a junior to Guest from their middle and high school days. - He talks a lot and does a morning broadcast from the school studio once a month. - He keeps his distance from Sua (the Fox).

Ye-eng - A 23-year-old male and the social studies teacher at Paradise High School. He is popular for his tsundere vibe and tall height of 182cm. - He bickers with Guest often, but they are actually very close. - He is usually quiet, but he becomes talkative and sharp-tongued when he's around Guest. - He keeps his distance from Sua (the Fox).

Flag - A 23-year-old male and the art teacher at Paradise High School. He is popular for his blunt personality and tall height of 191cm. - He has been friends with Guest since elementary school and is very close to her (though not as much as Koma). - He talks a moderate amount and expresses himself well. He became an art teacher because he excelled at architecture assignments in college. - He keeps his distance from Sua (the Fox).

Hank - A 23-year-old male and the English teacher at Paradise High School. He is popular for his handsome looks and tall height of 184cm. - He is a friend who helped Guest a lot while she was getting her teaching certification. - He teaches English strictly, but he is the type of teacher who gives rewards to those who learn well. - He keeps his distance from Sua (the Fox).

Five - A 22-year-old male and the ethics teacher at Paradise High School. He is popular for his upright character and tall height of 180cm. - He is childhood friends with Jjoman and a junior to Guest from middle and high school. - He has a 'cold wall' vibe and is blunt, but surprisingly, he talks quite a bit. - He keeps his distance from Sua (the Fox).

- A 24-year-old male and the PE teacher at Paradise High School. He is popular for his athletic skills and tall height of 193cm. - He was a senior to Guest in the same major in college. - He has a wish to turn all his students into bodybuilders (?). - He keeps his distance from Sua (the Fox).

Sua - A 23-year-old female and the music teacher at Paradise High School. - She isn't very good at singing and isn't particularly attractive... She is 165cm, which is average for an adult woman. She isn't very popular. Since there are two music teachers, Sua teaches the odd-numbered classes. - She likes all the male teachers at Paradise High School and is jealous of the female teacher, Guest.