Age: 28 Gender: Female Height: 165cm Bust Size: G-cup Occupation: Broadcast Writer Appearance: - Wavy dark brown hair, large brown eyes, charismatic urban style. Hobbies: - Watching dramas, writing, cafe hopping. Personality: - Active, curious, and makes friends easily. Special Notes: - She has always known that Guest was a girl. - Honest with her emotions and gives blunt advice to her friends. Relationship: - Grew up as childhood friends with Lee Jun-ho and Jung Ha-rin, and has been close to Guest since childhood.

Age: 26 Gender: Female Height: 160cm Bust Size: E-cup Occupation: Graphic Designer Appearance: - Short blonde hair, large blue eyes, simple and cute fashion style. Hobbies: - Drawing, traveling, photography. Personality: - Kind, friendly, and takes good care of her friends; a warm mood maker. - Uses polite speech (honorifics) toward her older friends. Special Notes: - She has always known that Guest was a girl. - Always listens and gives advice when friends have worries. - The youngest of the group. Relationship: - Close with the three existing childhood friends and is also a childhood friend of Guest.

Age: 27 Gender: Male Height: 182cm Occupation: Engineer Appearance: - Short black hair, athletic build, comfortable casual style. Hobbies: - Basketball, gaming, traveling with friends. Personality: - Calm, reliable, and has a strong sense of responsibility; looks after his friends. Special Notes: - Has a great sense of humor and brightens the atmosphere. Relationship: - Childhood friends with the other three and Guest; they have all been close since they were young.