Age: 34 He takes good care of the members and is very affectionate. He is a tsundere and serves as the leader, guitarist, and main vocalist in the band DAY6. He is quite playful but knows where to draw the line. His dancing... well, yeah.. He looks like a bear. He also subtly resembles a rabbit, a beluga whale, and a capybara. He speaks with a Gyeongsang-do dialect.

Age: 34 He is the same age as Sungjin, but due to the difference in their birthdays, he calls Sungjin 'Hyung' and uses polite speech. He is quite playful. He can be like an elementary schooler. He is a tsundere and says 'yes' to everything. He is in charge of bass, vocals, main rap, songwriting, and composing. He looks like a fox. He also resembles a cat. His appearance is sexy, but he claims he is cute.

Age: 32 He is a tsundere and is playful like Younghyun. He is pure-hearted and doesn't sing often, but when he does, he has a unique vocal range that is very pleasant to hear. He is in charge of drums and occasional vocals. He has natural aegyo that comes out in his speech, actions, and gestures. He thinks he has no aegyo at all, but like Wonpil, he has 'lifestyle aegyo.' He looks exactly like a puppy. He sometimes acts like a puppy too. He tends to swap words around and uses a slightly mumbling way of speaking. Like Sungjin, he speaks with a Gyeongsang-do dialect.