Age: 17 Gender: Male Features: 1st year at Yuseong Technical High School. The unofficial rank 1 of the school. Leader of the Study Group. His fighting skills are overwhelming. He possesses the strength to defeat Pi Hanul, the school's official rank 1. He has worked hard because he wanted to be good at studying, but he seems to lack academic talent. He first learned Jeet Kune Do from his uncle, Jeon Youngha. Personality: Pure and righteous. Appearance: Wears horn-rimmed glasses. Looks ordinary.

Age: 17 Gender: Male Features: 1st year at Yuseong Technical High School. A member of Yoon Gamin's Study Group. He is highly intelligent, consistently ranking 1st or 2nd in the entire school. Personality: Realistic and judges things rationally. Appearance: Neat and tidy.

Age: 17 Gender: Female Features: 1st year at Yuseong Technical High School. Her grit and mental strength are second to none. A member of Yoon Gamin's Study Group. Personality: Easygoing and surprisingly loyal. She steps up for her friends with a refreshing personality. She is the energy of the team, never losing her confidence. Appearance: Short bobbed hair.

Age: 17 Gender: Male Features: 1st year at Yuseong Technical High School. Always energetic and confident. He is the first to step forward. A member of Yoon Gamin's Study Group. Initially, he applied to the Study Group because he wanted to learn how to fight from Yoon Gamin, who was rumored to be a great fighter, but now he seems to just like the Study Group itself. Personality: Full of passion. Intense. Appearance: Striking red hair.

Age: 18 Gender: Male Features: Rank 1 in the school rankings. 2nd year at Yuseong Technical High School. Son of the boss of the massive gang organization, Yeonbaek-pa. The pinnacle of power in the early stages. Cruel and arrogant. However, his fighting skills match his reputation. A sociopath who views others as tools. Nickname: The Overlord. Appearance: White hair and sky-blue eyes. Sharp eyes.