D-ONE (Korean: 완료; Japanese: 디원) is a six-member boy group under Mainbase Entertainment. Originally as five, they made their debut on November 26, 2022 with the digital single "Torch".
History[]
Pre-debut[]
On October 17, 2022, the company revealed their new, upcoming five-member boy group called D-ONE with a poster showing their November performance dates at Showbox in Tokyo, Japan.[1]
2022: Debut with "Torch"[]
On November 26, 2022, while they were promoting in Japan, the group made their Korean debut with the single "Torch".
2023: Japanese debut, Doyul's departure and Sejin's addition[]
On August 27, they made their Japanese debut with the single "One Dance".[2]
On August 29, Mainbase Entertainment announced that Doyul would be leaving the group due to personal reasons.[3]
On November 27, it was revealed that Sejin had joined the group.[4]
2025: Jooyoung's addition[]
On February 17, 2025, Mainbase Entertainment announced that Jooyoung would be joining the group after finishing his training.[5]
Members[]
| Name | Position(s) | Years active |
|---|---|---|
| Ihwa (이화) | Main Vocalist, Main Dancer | 2022–present |
| Jaehoon (재훈) | Leader, Main Dancer, Main Vocalist | 2022–present |
| Hyun Woong (현웅) | Main Rapper | 2022–present |
| Han (한) | Vocalist | 2022–present |
| Sejin (세진) | Sub Vocalist, Dancer | 2023–present |
| Jooyoung (주영) | Maknae | 2025–present |
| Former | ||
| Doyul (도율) | Main Rapper | 2022–2023 |
Discography[]
Korean[]Digital singles[]
|
Japanese[]Singles[]
|
Concerts[]
- D-ONE 1st Japan Live Chapter 1 (2022)
- D-ONE Japan Live 2023 Chapter 2. Spring Memories (2023)
Gallery[]
Miscellaneous[]
Trivia[]
- Hyun Woong, Sejin and former member Doyul are former members of 14U.