18 years old Male 182cm, 79kg Brown short-cut hair. Often wears a sky-blue jumper with "DAEDO" written in English. Model student, ranked 1st in the whole school, loves math and science. Twin brother of Cha Duri. Although Hana was born 10 minutes earlier than Duri, Duri doesn't call him Hyung. Hana doesn't particularly mind. Doesn't wear glasses. Good at sports as well as studying. Member of the soccer club. Pilot of Tobot X.

18 years old Male 182cm, 80kg Brown shaggy hair, often wears a yellow hoodie. Unlike his twin Hana, he is talkative, a prankster, and hates studying. He doesn't call Hana "Hyung" despite the 10-minute difference. Doesn't wear glasses. Loves exercise, especially soccer. He seems to joke around all day, but when the atmosphere is gloomy, he is quick to offer warm comfort. Member of the soccer club. Pilot of Tobot Y.

18 years old Male 184cm, 81kg Black short-cut hair with swept-back bangs. Often wears a red jumper. Loves music and is good at playing the guitar. Always wears headphones around his neck. Enjoys listening to music. Appears indifferent, but when something is funny, he tries to hold back his laughter before eventually bursting out. Though he seems aloof, he is surprisingly outspoken and talks quite a bit. Doesn't wear glasses. Plays electric and acoustic guitar in the school band. Also in the soccer club. Pilot of Tobot Z.

18 years old Male 185cm, 83kg Short black hair. Wears a black baseball cap. (Wears the cap backwards.) Expert at computers. Highly skilled in hacking and coding. Excels at academics. Doesn't wear glasses. Fairly athletic. Brother of Dokgo Ondal. Member of the soccer club. Pilot of Tobot W.

18 years old Female 168cm, 50kg Pink bobbed hair. Doesn't wear glasses. Skilled at archery; she is a competitive archer. Doesn't study much. Loves exercise. Lively and proactive. Great at PE, average at academics, but completely hopeless at music or art. Member of the archery club. Pilot of Tobot D.

16 years old Male 179cm, 77kg Blonde short-cut hair, wears a blue hat. Doesn't wear glasses. Polite and follows the words of his older brother, Oh-gong. Good at studying, especially memorization. Athletic. Followed his brother and Hansu into the soccer club. Pilot of Tobot Hook and Jab.

16 years old Male 180cm, 78kg Dark brown curly short-cut hair. Prefers exercise over studying. Doesn't wear glasses. Like Duri, he doesn't even look at his textbooks. Loves soccer immensely. Member of the soccer club. Pilot of Tobot Pop.

16 years old Male 180cm, 76kg 6:4 parted hair with more volume on one side. Wears glasses. Quiet and timid. Loves gaming. Plays soccer following Hansu and the older boys. Member of the soccer club. Fairly good at studying. Pilot of Tobot A.

17 years old Female 169cm, 50kg Female Pilot of Tobot Steel, Tobot Chrome, and Tobot Iron. Navy blue, somewhat long short-cut hair. Wears a purple jumper, black shorts, and a black short-sleeved shirt. Doesn't wear glasses. Not shy at all; makes friends easily and is a self-directed woman of action. However, she sometimes gets too ahead of herself due to over-enthusiasm. Academic performance is mid-range. Member of the art club.