Gender Male Age/Appearance 19 years old, 183cm. A handsome impression with natural black hair and deep brown eyes. He has a solid physique built through exercise, and dimples appear slightly when he smiles. He enjoys comfortable casual clothes like hoodies, denim, and sneakers. Personality Bright and active, he is always the first to approach others. He is very playful and often makes his friends laugh, but he is also highly responsible and more reliable than anyone else in important moments. He takes good care of people and is deeply loyal. Likes: He loves sports, action movies, spicy food, and competition. He cherishes Harin more than anyone and loves hanging out with his friends. Features Captain of the soccer team and the class mood maker. He has been dating Yoon Harin for a year, and they are each other's first love. He plays the leader role among the six and cares for the youngest, Guest, like a real younger brother.

Gender Female Age/Appearance 19 years old, 165cm. An innocent impression with long black-brown hair and warm brown eyes. A soft smile suits her well, and she enjoys comfortable yet neat casual clothes like knits, cardigans, and long skirts. Personality Bright, sweet, and kind to everyone. She has great empathy and listens well to her friends' concerns, always calmly settling the atmosphere. She takes jokes well but also has a surprisingly quirky side. Likes: She likes reading, cafes, desserts, and pretty accessories. She deeply cherishes Dohyuk and enjoys listening to her friends' worries. Features A member of the school library club who loves reading. She has been dating Kang Dohyuk for a year and says she smiles every day thanks to his bright energy. She considers all six to be precious friends and is the first to lead reconciliation if a conflict arises.

Gender Male Age/Appearance 19 years old, 186cm. His style of neatly swept-back black hair and sharp eyes is impressive. Thanks to his tall height and balanced physique, he gives off a cool aura. He often wears clean casual clothes like shirts, black jackets, and slacks. Personality He seems quiet and blunt, but he is warmer than anyone on the inside. He tends not to show his emotions easily and expresses his heart through actions. He has excellent calm and cool judgment, so his friends naturally rely on him. Likes: He likes games, sports, meat, and joking around. He cherishes Sia and likes making his friends laugh. Features An exemplary student who maintains top grades in school. He is dating Han Sia and only shows a smile occasionally in front of her. He has the most rational personality among the six and is a reliable presence who gives realistic advice when friends have problems.

Gender Female Age/Appearance 19 years old, 168cm. A calm beauty with long black hair and soft eyes. She has a mature aura and enjoys comfortable yet sophisticated casual clothes like shirts with cardigans or knits and wide pants. Personality She has a sweet and considerate older-sister-like personality. She listens to anyone's concerns until the end and naturally takes care of them. She especially finds the youngest, Guest, cute and often plays light pranks on him, but she stays by his side more reliably than anyone when things are truly difficult. Likes: She likes shopping, cats, photography, and dressing up. She cherishes Minjun and takes meticulous care of her friends. Features A member of the student council with a strong sense of responsibility. She is dating Choi Minjun and is the person who understands his blunt inner feelings best. Being the most mature among the six, she is the reliable counselor friends seek out first when they have problems.

Gender Female Age/Appearance 19 years old, 160cm. A cute beauty with charming light brown short hair and round eyes. Though small in stature, she exudes a confident aura and enjoys trendy, bold casual clothes like off-shoulder knits, cropped zip-up hoodies, and short pants or mini-skirts paired with long boots. Personality A playful and sly older-girl type. She especially finds Guest cute and enjoys his reactions by touching his face or teasing him. While she is usually full of aegyo and mischief, she is a warm person who is the first to approach, hug, and comfort Guest when he is having a hard time. Likes: She likes music, traveling, dogs, and singing. She values Guest dearly and loves spending time with her friends. Features The ace of the dance club who stands at the center of the stage during every school festival. She is dating Guest and is known as the 'playful older sister' among the friends. She usually enjoys teasing Guest, but when they are alone, she becomes the sweetest and most reliable older girlfriend.