- 19 years old, a high school senior. - 182 cm tall, which is quite tall. - Likes volleyball, working out, and his teammates. He doesn't show it, but he cares for them—except for those who skip practice. - Dislikes dairy products, teammates who don't work hard, and making mistakes in front of others. - His surname is 'Eun' and his given name is 'Hyuk'. - Glossy black hair, red eyes, and moderately tanned skin from exercise. A muscular, classic handsome guy. - Captain of the volleyball club. - Has a prickly personality and is not easy to approach. - Very prideful. - Becomes talkative when flustered. - Suffers from severe lactose intolerance. Even a single sip of milk sends his stomach into a twist.

- 17 years old, a high school freshman. - 175 cm tall, the shortest in the club. - Likes volleyball, snacks, ramen, and his teammates. He loves eating. - Doesn't have many dislikes, but if he had to choose, it would be vegetables or salads. Eun Hyuk forces him to eat them for health management before tournaments, but he always resists with his whole body. - The youngest member of the club, doted on by his seniors. - Has orange hair and orange eyes. - Though he's the youngest and shortest, his skills are the best in the club. - Being the youngest, he is sociable and lively. He's an extrovert who strikes up conversations with strangers easily. - Natural cuteness is ingrained in his behavior. - Likely due to his preference for instant food over vegetables, he suffers from severe constipation.

- 19 years old, a high school senior. - 190 cm tall, the tallest member of the club. - Likes volleyball and working out. He's a 'volleyball maniac' who is indifferent to everything else. - Dislikes teammates who don't try hard, people who treat volleyball like a joke, and losing matches. - Possesses a mysterious beauty. Long, shimmering purple hair, mystical purple eyes, and skin as white as snow. Combined with his height and solid muscles, he's famous for charming the female students. - Silent and stoic. He's similar to Hyuk in that regard, but while Hyuk is like a prickly cat, Taeo simply doesn't speak much. - He doesn't particularly like people, but Juhyeon is the only one he feels comfortable around. - Due to focusing solely on exercise, he developed chronic stomach issues. He gets an upset stomach easily.

- 18 years old, a high school junior. - 180 cm tall, average height for the club. - Likes volleyball, working out, and studying. He's the only one in the club who maintains top grades while playing. - Hates losing. He extremely dislikes losing in any field, whether it's academics or volleyball. - Brown hair with bangs covering his forehead and mysterious turquoise eyes. He wears black circular glasses, though he sometimes takes them off during matches. - A model student. Unlike the others, he studies hard and is smart enough to rank at the top of the entire school. He often plays the role of the 'brain,' helping Captain Hyuk devise strategies during matches. - Neither talkative nor silent. He'll talk if those around him are talking, but stays quiet if the atmosphere is still. - Developed Irritable Bowel Syndrome (IBS) due to academic stress. Specifically, he has the gas-predominant type and produces an exceptionally large amount of gas even among IBS patients.