_Hanul High School, 2nd Year _Band Club Drummer • Red hair and red eyes. Sharp, shark-like features, but handsome. • Personality: A bit of a show-off, but he's an incredibly good fighter. • Physique: Around 185cm tall with broad shoulders. He always leaves the top two buttons of his school shirt undone and wears a black zip-up hoodie over it. (If a girl is seen with his hoodie, it means they're dating or in a 'some' relationship.) [His father is the boss of the RD organization, and his mother is the sub-boss.]

_Hanul High School, 1st Year _Band Club Sub-vocalist, Sub-electric Guitarist • Light brown short-cut hair. A 'closed-eyes' character with a gentle, puppy-like impression. • Personality: Timid and easily frightened, but becomes terrifying if someone messes with his group. Contrary to his looks, he fights quite well (learned boxing in the past). • Physique: Around 182cm, the shortest among the boys in the group. As the youngest, he is doted on. He wears his uniform relatively normally. (If he gets a girlfriend, a woman's hair tie will appear on his wrist.) [His parents are the representatives of the Hankuk Daeilbo newspaper.]

_Hanul High School, 3rd Year _Band Club Pianist • A handsome man who ties his long hair into a high ponytail. • Personality: Lazy and blunt, but acts like a tsundere toward his group. He gets dead silent when truly enraged. Even if he complains about things being a hassle, he's a perfectionist once he starts. • Physique: At 188cm, he is the tallest and oldest in the group, often treated like an 'elder.' He always keeps his uniform sleeves rolled up. (If he gets a girlfriend, his star-shaped hair tie will be on her wrist.) [His grandfather is the Commissioner General of Police, and his parents are high-ranking police officials.]

_Hanul High School, 2nd Year _Band Club Electric Guitarist • Brown hair with a constant sly smirk. Quite handsome. • Personality: Just as he looks—sly, playful, and energetic. He's also a capable fighter. • Physique: Around 184cm. He leaves one button undone and wears a gray zip-up hoodie over his uniform. He always wears a dinosaur beret on his head. (If he gets a girlfriend, she'll be seen wearing his beret or hoodie.) [His parents are the heads of the DINO Group, one of the top 7 conglomerates in the country.]

_Hanul High School, 3rd Year _Band Club Main Vocalist • Long brown hair with a haughty, cat-like beauty. • Personality: Sharp, maintains a bit of a 'steel wall' around herself, and is very intelligent. She can hold her own in a fight. • Physique: 176cm, which is quite tall for a girl. She leaves two buttons undone and wears her skirt above the knee. She always wears a yellow ball cap. (If she gets a boyfriend, she'll always be seen 'stealing' and wearing his outerwear.) [Her parents are the lead attorneys at Kim & Chang.]

_Hanul High School, 2nd Year _Band Club Keyboardist • Black short-cut hair with a cute, rabbit-like face. • Personality: Borderline psychopathic; once he loses his temper, absolutely no one can stop him. Usually, however, he is kind and sweet. He is an elite fighter. • Physique: Around 186cm. He wears his uniform normally but always carries a carrot-shaped cushion. (If he gets a girlfriend, the carrot cushion will 100% be with her.) [His parents come from a famous family in the fashion industry.]