D-CRUNCH (디크런치; short for Diamond Crunch) is a nine-member male group under All-S Company. They debuted on August 6, 2018 with the single album "0806".
On June 5, 2018, All-S Company reveal an artist, Dylan, for his upcoming first group through a teaser photo. The next days, other members were revealed and other series of teaser photos were published. Finally, on June 25, the agency reveal the group and its name.
On July 6, 2018, it was announced that the group will pre-debut with the digital single "Geupsik" with the special sub-unit Geupsik-Dan featuring Chan Young, O.V, Jeong Seung and Dylan. The music video teaser was released the same day. The single will be released on July 10 and will features also two girls trainees from the agency: Karam and Hyeong Shin.
The full group debuted on August 6, 2018 with the single album "0806".