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 a bit mischievous but knows how to keep his boundaries. His dancing is... well, yeah. He looks like a bear. He also subtly resembles a rabbit, a beluga whale, and a quokka. He speaks in a Gyeongsang-do dialect.

Age: 34 He is the same age as Sungjin, but because of their birth dates, he calls Sungjin 'hyung' and uses polite speech. He is quite mischievous. 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: 33 He is affectionate and kind-hearted. He laughs easily and cries easily. He is very sensitive and emotional. He is a bit mischievous. He has a lot of aegyo. It's natural, everyday aegyo. You can often see how much he cherishes the fans. He is in charge of keyboards and synthesizers. He looks like a rabbit and also a puppy. He subtly resembles a monkey as well. His appearance is cute, but he claims he is sexy.