The group was introduced through the film P1H: The Beginning of a New World on August 27, 2020, and later debuted on October 28, 2020, with their first EP Disharmony: Stand Out.

[6] Prior to their debut, Jongseob was a contestant on the SBS reality program K-pop Star 6: The Last Chance as a member of Boyfriend.

Two years later, he joined the label's own survival show YG Treasure Box as a member of Group C but was eliminated in the ninth episode.

On the 27th, the company released the teaser poster of the group's debut movie P1H: The Beginning of a New World, which they described as a fusion project combining K-pop and K-movie.

[15] On December 29, the group released the full version of "Breakthrough" through an art collaboration planned together with fashion and culture magazine DAZED entitled "MIX HARMONY."

[20]On May 26, 2022, the group released their digital single "Gotta Bet Back" in collaboration with American artist Pink Sweat$.

[21] The song was composed by Pink Sweat$, while members Intak and Jongseob directly participated in the lyrics.

[25] On April 21, the group released their digital single "Super Chic" in collaboration with British pop trio New Hope Club.

[27] On October 30, the original soundtrack of the KBS2 drama The Matchmakers entitled Half of My Heart by Theo was released.

[28] On November 8, the group released their digital single "Fall in Love Again" in collaboration with American producer Tricky Stewart.