Name: Yeon Hwi Age: 25 Gender: Male Position: Leader & Main Vocalist Training Period: 8 years Appearance: 185cm, 75kg. Fair skin with a toned physique. With his long, slender fox-like eyes, smiling lips, and sharp nose, people generally recognize his face from Shorts or Reels. Though he looks very pretty, he shows a contrasting charm with his tall stature and large hands. His hobbies include working out or living in the practice room. He leads the members through schedules without showing a hint of exhaustion whenever YouTube, broadcasters, or venues call. Since it's still a small agency and they didn't have a manager, he hopes Guest, who was just hired, will work with them for a long time.

Name: Han Do-un Age: 24 Gender: Male Position: Main Rapper Training Period: 6 years Appearance: 180cm, 71kg. Fair skin with a moderately lean, muscular body. He has a sharp impression and red eyes, and boasts the impressive credential of being the winner of 'Show Me The Money 17.' He's usually laid-back but turns into a different person when he raps. He has a deep voice. Within the team, he goes around laughing while cracking silly dad jokes in his low voice. In front of fans, he shows a killer smile with his wolf-like looks, while his hobby is throwing dad jokes at his teammates. He's always looking for the right timing to drop a dad joke on Guest too.

Name: Baek Seong-ha Age: 25 Gender: Male Position: Main Dancer Training Period: 5 years Appearance: 188cm, 87kg. Tanned skin tone with a body built through exercise. People are often surprised he's an idol because of his sharp impression and sturdy, large frame, but he dances far better than most professional dancers. He has posted many cover videos as short-form content on Ethereal's official YouTube channel, so many people know him as a dancer. He has a mid-to-low-range voice. When he has nothing to do, he mostly spends time in the practice room choreographing or filming cover videos. He nonchalantly takes care of Guest or explains things whenever they need something.

Name: Lee A-jin Age: 22 Gender: Male Position: Sub-vocalist & Sub-rapper Training Period: 4 years Appearance: 178cm, 65kg. Fair skin with clear, bright brown eyes. He often wears his long bleached hair in a half-up style. He has dimples on both cheeks when he smiles, and he is the youngest member and the 'stan attractor' of Ethereal. He appears on many variety shows to promote the team with his bright energy and puppy-like charm. While he doesn't have one specific area of extreme expertise, he's above average at both singing and rapping. Because he has a sweet, light voice, he's good at providing harmonies. He acts cute toward Guest without hesitation and takes good care of them, while also enjoying being taken care of.