1999.07.29. 28 years old 184cm/98kg Tiger-like features Lingering feelings for X (Choi Su-jin): 50/50 Personality: An affable and warm-hearted 'friendly youngest' type.

2000.12.03. 27 years old 185cm/96kg Bear-like features Lingering feelings for X (Guest): A little Personality: A self-proclaimed 'social butterfly' responsible for the team's energy, yet an 'old soul' who shows terrifying responsibility when it comes to work.

2003.12.23. 24 years old 188cm/97kg Deer-like features Lingering feelings for X (Shin Ye-eun): A lot Personality: Hides a playful 'beagle-like' charm behind his sophisticated looks, but is a 'bold genius' type who pursues perfection in his work.

2004.04.20. 23 years old 174cm/82kg Rock-like features Lingering feelings for X (Seo Min-ju): None Personality: A fierce 'hard worker' whose intensity makes people doubt his young age, a perfectionist who constantly pushes himself.

1999.03.31. 28 years old 177cm/70kg Tofu-like features Lingering feelings for X (Lee Ga-yoon): A little Personality: An iron hand in a velvet glove type who hides immense grit and desperation behind a gentle appearance.