ZEROBASEONE is moving into its first comeback cycle as a five-member group, with Sung Han-bin, Kim Ji-woong, Seok Matthew, Kim Tae-rae, and Park Gun-wook forming the reorganized lineup. The group’s sixth mini album, Ascend-, is scheduled for release on May 18 at 6 p.m. on online music platforms, with Mnet Plus ZEROBASEONE COMEBACK PREMIERE set for May 17 at Korea University’s Hwajeong Gymnasium in Seoul.12
The change follows the end of ZEROBASEONE’s original nine-member project activities. WakeOne confirmed in February that Zhang Hao, Ricky, Kim Gyu-vin, and Han Yu-jin would leave after completing the group’s fixed project period, while the remaining five members would continue under a new season for the team.3
ZEROBASEONE Five-Member Lineup Confirmed

ZEROBASEONE was formed through Mnet’s Boys Planet as a project group. In December 2025, all nine members agreed to extend activities for two months, but the next phase of the act was later organized around the five members who remained after the project period concluded.3
The group’s nine-member activities ended with a March 15 concert at KSPO Dome in Seoul Olympic Park. After that date, Sung Han-bin, Kim Ji-woong, Seok Matthew, Kim Tae-rae, and Park Gun-wook continued as ZEROBASEONE, while Zhang Hao, Ricky, Kim Gyu-vin, and Han Yu-jin returned to YH Entertainment. Reports first described the four departing members as preparing for a new group debut, and later identified them as members of the new group Andouble.45
WakeOne’s announcement, as reported by Newsis, described the continuation as a decision to share a new season and said the agency would provide full support.3 A later Edaily report said WakeOne connected the new album to the Korean phrase meaning that the group continues to be connected and carried forward, but the album’s full track details were not provided in the source material.5
The public rollout of the five-member formation began before the album schedule was announced. Yonhap News, carried by Financial News, reported that ZEROBASEONE revealed a new team logo adjusted for the five-member lineup.4 OSEN, carried by ChosunBiz, reported that the group posted new five-member profile photos through official social media at midnight on April 6, with black suit styling and a collaboration with photographer Cho Gi-seok.6
ZEROBASEONE Ascend- Release Timeline
The Ascend- campaign has been built through a sequence of dated updates, from the end of the nine-member project phase to the concept rollout for the new album. The following table summarizes the confirmed schedule and transition points.
| Date | Event | Confirmed details |
|---|---|---|
| February 12, 2026 | Lineup change reported | WakeOne confirmed ZEROBASEONE would reorganize around Sung Han-bin, Kim Ji-woong, Seok Matthew, Kim Tae-rae, and Park Gun-wook.3 |
| March 15, 2026 | Nine-member activities ended | The original lineup concluded activities with a concert at KSPO Dome in Seoul Olympic Park.4 |
| March 30, 2026 | Five-member logo reported | ZEROBASEONE revealed a new team logo for the reorganized lineup.4 |
| April 6, 2026 | New profiles released | Five-member profile photos were posted through official social media at midnight.6 |
| April 30-May 1, 2026 | First concept materials released | Cover Story version concept photos and films for Ascend- were released sequentially.1 |
| May 17, 2026 | Comeback premiere | Mnet Plus ZEROBASEONE COMEBACK PREMIERE is scheduled at Korea University’s Hwajeong Gymnasium in Seoul.2 |
| May 18, 2026 | Album release | Ascend- is scheduled for release at 6 p.m. through online music platforms.1 |
StarNews reported that the May 17 premiere will take place one day before the official comeback and will preview part of the new album’s stage. The event is tied directly to the release of ZEROBASEONE’s sixth mini album.2
The first concept materials for Ascend- were released through official social media on April 30 and May 1. The Cover Story version used suit and leather styling, with the report describing the visual direction as both classic and modern.1
Ascend- also follows RE-FLOW, a special limited album released in February. StarNews described the new mini album as arriving about three months after that earlier release.2
Quick FAQ
When is ZEROBASEONE releasing Ascend-?
ZEROBASEONE’s sixth mini album Ascend- is scheduled for release on May 18, 2026, at 6 p.m. through online music platforms.1
Where is the comeback premiere being held?
Mnet Plus ZEROBASEONE COMEBACK PREMIERE is scheduled for May 17, 2026, at Korea University’s Hwajeong Gymnasium in Seoul. The event is planned to show part of the new album’s stage before the official comeback.2 !ZEROBASEONE Ascend- May 18 release five-member lineup concept ZEROBASEONE’s five-member comeback is therefore centered on two confirmed dates: the May 17 Seoul premiere and the May 18 release of Ascend-. The available reports establish the lineup change, the end of nine-member activities, the revised branding, and the first concept rollout, while additional album details remain limited to what has been officially reported.
References
- 'Charisma' ZEROBASEONE Reveals First Concept for Mini Album 6 'Ascend-' (스타뉴스, 2026-05-01)
- ZEROBASEONE to Hold Unprecedented Comeback Premiere in May (스타뉴스, 2026-04-28)
- 제로베이스원 5인조로…장하오·리키·김규빈·한유진 떠난다 (뉴시스, 2026-02-12)
- [가요소식] 제로베이스원, 5인 체제 팀 로고 공개 (연합뉴스/파이낸셜뉴스, 2026-03-30)
- '5인조 변모' 제로베이스원, 내달 18일 새 앨범 '어센드-' 발매 (이데일리, 2026-04-27)
- 제로베이스원, 5인조 새 프로필 공개..'새 챕터' 시작 (OSEN/조선비즈, 2026-04-06)