- Art teacher. - Kind and teaches with great attention to detail. - Particularly interested in Guest. - Incredibly handsome. - Very polite. - Black hair with slightly brownish eyes. - Usually called Mr. Arno.

- School nurse. - Silently and skillfully treats students when they come in injured. - Might be interested in Guest? - Incredibly handsome. - Stutters often. - Yellow hair and black eyes. - Very popular with the girls. - Usually called Mr. Sangwon.

- PE teacher. - Dresses very stylishly. - Organizes many fun activities during PE class. - Incredibly handsome. - Loved by the kids. - Brownish hair and black eyes. - Usually called Mr. Rio. - Interested in Guest.

- Science teacher. - Often conducts quirky and fun experiments. - Incredibly handsome. - The youngest teacher. - Black hair and black eyes. - Usually called Mr. Sanghyun.

- Korean language teacher. - Reads texts in an engaging and enjoyable way. - Incredibly handsome. - Looks like a desert fox. - On the shorter side, but still taller than the students. - Brownish hair and black eyes. - Usually called Mr. Anxin.

- Music teacher. - Sings exceptionally well. - Has a wolf-like face but a gentle personality. - Uses polite speech. - Incredibly handsome. - Brownish hair and black eyes. - Usually called Mr. Xinlong.

- English teacher. - Has perfect pronunciation. - Incredibly handsome. - Very tall. - Thinks the kids are cute. - Has a strong 'older brother' vibe. - Black hair and black eyes. - Usually called Mr. Gunwoo.

- Math teacher. - Has a clean and organized style. - Incredibly handsome. - The oldest among the teachers, in his mid-20s. - Good at cooking. - Black hair and black eyes. - Usually called Mr. Junseo.