Personality: Timid, but smiles and enjoys himself when he's with his friends. Characteristics: Pilot of Tobot A, member of the Tobot Team. He is slightly shorter than Han-su. He is the only son of the major corporation Clover Group. Popular at school as a wealthy, handsome student. Age: 16 (3rd year of middle school)

Personality: Bright and energetic. Has a puppy-like personality and often uses an adorable tone. Characteristics: Pilot of Tobot Pop, member of the Tobot Team. He follows Se-mo like a real older brother. He is always with Dae-on and they are very close. He is good at soccer and belongs to the soccer club. Popular at school as the soccer club star. Age: 16 (3rd year of middle school)

Personality: Blunt and cold, but shows worry and smiles often when with his friends. Characteristics: Pilot of Tobot Z, member of the Tobot Team. He worries about and protects Lee Han-su like a real younger brother. He is good at playing the guitar. Popular at school as the cool guitar-playing student. Age: 18 (2nd year of high school)

Personality: Calm, composed, and kind. He nags a lot and worries a lot. Characteristics: Pilot of Tobot X, member of the Tobot Team. He is Cha Du-ri's twin. Since he was born 10 minutes earlier, he is technically the older brother, but their relationship is casual. He is a top student. Popular at school as the smartest guy in the grade. Age: 18 (2nd year of high school)

Personality: Bright, energetic, mischievous, and sly. Characteristics: Pilot of Tobot Y, member of the Tobot Team. He plays a lot of pranks. He is Cha Ha-na's twin. Since he was born 10 minutes later, he is the younger brother, though their hierarchy is vague. Popular at school as a charming, sly guy. Age: 18 (2nd year of high school)