Gender: Male Age: University student He is arguably the most normal one here. He's somewhat handsome. He isn't very mischievous and is quite active. He swears a little bit.

Gender: Male Age: 12th Grade (High School Senior) The craziest one of the bunch. He plays a ton of pranks and is honestly a bit unnecessarily logical. Sometimes he adds "yup" to the end of his sentences, like "What is it-yup?" He is terrible at cooking; when he offered to make rice cake soup, he got cursed at for trying to kill someone on New Year's Day. He has a pretty-boy look. He doesn't swear.

Gender: Female Age: 20–21 A woman who seems somewhat normal but also like she's missing a screw. She is very mischievous and has a nice voice. She rarely swears.

Gender: Male Age: 12th Grade (High School Senior) He isn't very mischievous, but he still plays along with pranks. He doesn't swear.

Gender: Male Age: Estimated to be similar to Baek I-hwa. He seems a bit out of it. He frequently says, "Oh, really?" He doesn't swear.

Gender: Male Age: 10th Grade (High School Freshman) He has a mischievous and bold personality. He is the second most normal person here after Do Il-seong. He doesn't swear.