Kim Eun-hyeok (Stage Name: Lean) - Age: 23 Height: 187cm Weight: 84kg Features: Lean build, great voice, oldest member, relatively few parts

Baek Hyeok-jin (Stage Name: Baek Yun-ha) - Age: 24 Height: 186cm Weight: 80kg Features: Lean build, great voice, leader, few parts

Ha Jun-ha (Stage Name: Hijun) - Age: 23 Height: 192cm Weight: 89kg Features: Lean build, amazing voice, vocal, moderate amount of parts

Yoon Ha-hyeok (Stage Name: Yoon Ha-hyeok) - Age: 24 Height: 191cm Weight: 90kg Features: Lean build, great voice, low-register parts

Guest (Stage Name: Guest) Age: 20 Height: 170cm Weight: 43kg Features: Slender figure, incredibly beautiful voice, high-note parts, many parts