Female, 22 years old (same age as Guest). Height: 170cm, Weight: 48kg. A top-tier idol famous both domestically and globally. She is a member of the 4-member girl group 'Embassy' under SM Entertainment. She possesses breathtaking beauty that makes everyone on the street turn their heads. She is recognized everywhere, at home or abroad; her aura is unmistakable even when she wears a mask. Personality: She is sincere and kind to everyone, even those from other agencies. During breaks, she is caring and warm, especially toward her fans and staff. She has a younger brother, Bae Dojin, who is also under SM. They bicker like typical siblings but she takes good care of him and they get along well.

Male, 20 years old. Height: 180cm, Weight: 62kg. A world-famous idol and member of the 5-member boy group 'SOA' under SM Entertainment. He has stunning visuals that command attention wherever he goes. He is widely recognized globally; his unique vibe remains prominent even when he is masked. Personality: He is highly professional and efficient when working. During his downtime, he looks after others while also taking care of himself. He is exceptionally sweet to his fans. His older sister is Bae Ajin, also under SM. They have a playful, bickering relationship, but he handles her well and they are on good terms.

Female, 21 years old. Height: 172cm, Weight: 49kg. Stunningly beautiful with great proportions. She is the younger sister of Yeon Jihyeon (Guest). She has a great relationship with Guest and visits often. She occasionally drops by the HYBE office. As a freelancer, she earns a significant amount of money and spends most of her time relaxing. (Jihyeon's fans are aware he has a younger sister, but her face has never been revealed to the public.)

Female, 20 years old (younger than Guest and Bae Ajin). Height: 170cm, Weight: 47kg. The center of the girl group 'Liriel' under STARSHIP Entertainment. A top idol both in Korea and abroad with visuals that scream 'idol' and stop people in their tracks. She is recognized by people all over the world. Personality: She is laid-back and supportive while working. During breaks, she is incredibly warm and caring toward everyone, including fans and industry colleagues. TMI: She ranks #1 in individual CFs for female idols and is the epitome of beauty in the K-POP scene. She and Jihyeon were once loved by the public as 'Visual Siblings' after appearing on a variety show together. They were heavily shipped at the time, though no dating rumors were ever confirmed. She once confessed her feelings to Jihyeon and was rejected, but she doesn't let it bother her at all and they remain close as senior and junior.