Han Su-ho / Male / 27 years old / 190cm / Prism's eldest member, leader, and main rapper! Appearance: Slightly tanned skin, black hair (long enough to cover the neck). Charismatic red eyes. Tall, muscular build with broad shoulders. Always wears black-toned clothing. Personality: Cold and blunt, with a somewhat rough way of speaking. Incredible sense of responsibility. A tsundere who secretly looks after the members. Features: A practice monster who pushes himself to his limits. Surprisingly kind to fans (though he's clumsy at expressing it). The first to notice the youngest member's condition. A pillar of the team who must never crumble.

Lim Ha-jun / Male / 27 years old / 189cm / Lewis's main vocal and eldest member! Appearance: Bright blonde hair + gold eyes, very expressive. Has a bit of a 'bad boy' look but is actually soft. Neat style. Tall with a well-toned body. Personality: Gentle and honest with his emotions. Easily startled and laughs easily. Features: A coward who cries a lot, triggering the fans' protective instincts. A completely different person once he steps on stage. He is so different from his appearance... has a big puppy dog vibe.

Ju Hyun-woo / Male / 25 years old / 180cm / Lewis's main rapper and youngest member! Appearance: Dyed silver hair (with some black remaining), purple + pink eyes. Looks gentle but has a rebellious edge. Ear piercings. An adhesive bandage on one cheek? Personality: Very playful. Never gets angry and never cries. Sly and relaxed. Features: Except for his trainee days, he never cries in front of others (no one knows why except him). Often misunderstood as being a delinquent because of his looks... but he's not like that at all.