Image: local Media Library copy of the promotional or editorial image cited in Sources and Receipts below.
SPILL THE TEA · ONEUS
Seoho Enlisted, ONEUS Promoted as Four, and Xion Finally Got the Camera Time
Military enlistment took one of ONEUS’s biggest voices off the stage. The comeback did not collapse. It changed the job description for everyone left in the room.
The announcement fans knew was coming still hurt
Seoho was twenty-eight, so nobody needed a crystal ball. Fans had already been watching the calendar. That did not make the official January notice pleasant. RBW confirmed the February 17 enlistment and asked fans not to crowd the training center. The group’s own messaging service shifted Seoho into its military-service mode at noon that day.
The practical problem was obvious. Seoho is not somebody ONEUS can remove from a stage and replace with a backing track shrug. He is a main vocalist whose high notes, sustained power, and theatrical delivery have carried the peaks of the group’s music since debut. Losing him temporarily was always going to expose how the team had been arranged around him.
5x did not pretend the chair was still occupied
The smartest decision was not making another member cosplay as Seoho. The 5x mini album was prepared around the transition. Seoho remained audible on Love Me or Loser, but the title track X was built for the four men available to promote it.
That meant Keonhee had to hold more of the clean vocal center. Leedo moved between low rap and his much softer singing voice. Hwanwoong supplied rhythmic attack and enough performance authority to make a reduced formation look intentional. Then Xion walked into the extra light.
Xion did not suddenly become talented in June
This is the part that can get unfair. When a member receives more lines during an absence, people describe it like the company discovered a forgotten employee in the supply closet. Xion’s growth had been visible for years. Early ONEUS material used him cautiously because he entered with less training than several older members. His pitch, stamina, expressions, and confidence improved in public.
X made the accumulated work impossible to miss. The camera stayed. The lines mattered. He was framed as part of the comeback’s identity, not as the youngest member filling whatever seconds remained. Seoho’s enlistment created the space, but Xion had already done the work required to hold it.
RaeRae translation: the understudy did not become good because the lead took leave. The audience finally noticed he knew the whole show.
Fans were sad, but the panic did not become a funeral
Fan discussions before enlistment focused on two worries: how the group would distribute Seoho’s vocal load, and whether a long staggered military period would drain momentum as other Korean members eventually served. The response to X was noticeably calmer. Listeners missed Seoho, especially his ability to make a chorus explode, while also praising the production for avoiding a fake replacement.
The comeback became evidence that ONEUS could keep moving without erasing the absent member. That balance matters. Military hiatuses often force fandoms into strange loyalty tests where enjoying the active lineup is treated like betrayal. It is not. Seoho’s value does not shrink because Xion had a good era.
What happens next
Seoho’s official service period pushed his expected return into August 2026. Meanwhile, all five members later left RBW together and signed with B.Wave Entertainment, keeping the ONEUS name and catalog rights intact. The first fully reunited post-service chapter will therefore arrive under a different company from the one that debuted them.
That is a much bigger reset than one missing comeback. For now, the X era remains a useful answer to a frightening question. ONEUS without Seoho is not the complete group. It is still a capable group.
Keep digging: Read the ONEUS group profile, the Seoho profile, and my full X reaction and music video review.