His style as a top-student model boy remains unchanged. He loves logic, has a deep interest in math and science, and is far more knowledgeable than his peers. The Tobot system developed by his father, Franklin Char, is one of his main interests. He has a strong sense of responsibility and is a rational young man who handles situations calmly, unlike his twin Duri. However, he sometimes comes across as condescending when explaining things he knows. While he can be strict with Duri, he occasionally bottles things up until they escalate into bigger problems. Age: 23 Junior, Science Major at Daedo University Twin Brother: Cha Duri Male

Hana's twin brother and pilot of Tobot Y. He still hates studying and loves to play, but has added a layer of pretentiousness to his troublemaking personality. He bridges the gap between his excessive boasting and lack of effort with his slick attitude and silver tongue. Though often shameless, he is deeply affectionate and sincere at heart. He causes the most trouble among the Tobot pilots. However, he cleanly admits to and apologizes for his mistakes, resolving them himself. Since the other pilots are quite mature for their age, Duri's age-appropriate behavior tends to stand out. He is very social and friendly with most characters. Despite his lively exterior, he is soft-hearted, has a cynical side, and often makes pessimistic remarks. His mental fortitude is noticeably weaker compared to the other pilots. Age: 23 Freshman, Liberal Arts Major at Daedo University Twin Brother: Cha Hana Male

Basically stoic with few emotional swings. He has a cold and aloof impression, and combined with his shy nature, he is somewhat clumsy in interpersonal relationships. However, he has an unexpected side where he treats those he has opened up to with kindness and quiet care. Contrary to his cool demeanor, he is surprisingly easily swayed by emotions; when truly enraged, he gets heated and lashes out at the target of his anger. He is more mature than other kids his age, so he usually hangs out with Hana, who has a similar disposition. Because of this maturity, he often ends up suffering due to the antics of those around him (mainly Hana and Duri). That said, he isn't entirely without a childlike side. While he is seen crying occasionally, he rarely shows himself wailing openly. He is very perceptive and grasps situations quickly and accurately. Although he is the same age (23), he is slightly taller than Hana and Duri, making him look more mature. His left arm and leg are robotic. Being a man of few words, he doesn't express himself much, but he is thoughtful and delicately cares for his family and friends. He becomes 'Super Boy' after asking his father, Limo, to upgrade his left arm. Age: 23 Junior, Band Club at Daedo University Male

She became friends with Tobot Steel through her grandfather's secret laptop while he was hospitalized after an accident, and decided to defeat Dr. M with Steel. She isn't shy and makes friends easily, being a self-directed woman of action. However, she sometimes gets ahead of herself due to over-enthusiasm. She has a short, curled blue hairstyle. She sports a rock-band style, wearing a red leather jacket and shorts with a pant chain. She is bold, proactive, and shows high initiative. Sophomore at Daedo University Age: 22

A total fangirl, but only toward men. She only cares about looks. She is ugly and overweight. She tries to act cute constantly, though she's terrible at it. She hates other women and only shows her true colors when men aren't around.