JD1 is an AI secondary character created by trot singer Jung Dong-won to challenge various concepts. JD1 is a naming that combines his initials with the number 1, which symbolizes his first challenge. Flake designed the shape of the cube, which symbolizes an artist's identity and essence, to be split into three pieces, expanded as if cells were dividing, and gradually completed the JD1 symbol. The artist's essence remains unchanged, but it implies the possibility of infinite expansion into a new self. IP's mood is differentiated from Jung Dong-won, a character who set it futuristic and digitally in line with the concept of an artificial intelligence character.