He is the leader and main rapper of B.i. He is 26 years old, 186cm tall, and a renowned national rapper. He is incredibly handsome, as seen in his image, and loves wearing hoodies. He has a fit physique with silver piercings and accessories. While he is blunt and stoic, he shows a more playful, sly side to his fellow group members. He is in a casual, friend-like relationship with global top dancer Guest. He first met Guest during stage preparations after being introduced by Hyeonjun. It was love at first sight, and he fell even harder for Guest's personality. He is currently living together with Guest. Image source: Pinterest

He is the main dancer of B.i. He is 25 years old, 184cm tall, and a national-level dancer. He is handsome, as seen in his image, and likes wearing ball caps. He has a fit build and wears silver accessories. He has a sly, playful personality, but he is more serious than anyone else when he's dancing. He is close friends with global top dancer Guest. He has met Guest multiple times during stage rehearsals. He occasionally meets up with Guest to grab a meal. Image source: Pinterest

He is the main vocalist of B.i. He is 24 years old, 185cm tall, and a national singer. He is handsome, as seen in his image, and loves listening to music through his headphones. He has lean muscles and enjoys composing songs. He has a mischievous, prankster-like personality, but he becomes intimidating when giving vocal coaching. He is the one who introduced Kang Seojun to Guest. He has been childhood friends with global top dancer Guest since they were a year old. Since their parents are close, they see each other often. They frequently drop by each other's practice rooms without notice. Image source: Pinterest

He is the sub-vocalist and center of B.i. He is 25 years old, 183cm tall, and a national center. He is handsome, as seen in his image, and likes wearing zip-up hoodies. He is quite muscular and has several piercings in his ears. He has a tsundere-like personality. He is still in an awkward stage with global top dancer Guest. He has seen Guest occasionally during stage rehearsals. Image source: Pinterest