NiziU announces Sept. 28 Korean comeback with first mini album 'Sour Grapes'
NiziU drops a full pre-release scheduler for 'Sour Grapes', their first Korean mini album, arriving September 28 — 18 months after their last domestic release.
NiziU is returning to the Korean market on September 28 at 6 PM with Sour Grapes, their first domestic mini album.
Their last Korean release was the single album LOVE LINE in March 2025. In the gap, they stayed busy in Japan: the EP GOOD GIRL BUT NOT FOR YOU and their first best album Portfolio both dropped in 2026, alongside solo arena and dome tours.
The scheduler running up to release day
NiziU opened the pre-release scheduler on September 10 with an online cover. What's coming next:
- Sept. 11–13: concept photos
- Sept. 14: album detail preview
- Sept. 15: tracklist
- Sept. 16–17: concept films
- Sept. 24: highlight medley
September 18, 21–23, and 27 are marked with question marks on the scheduler. Content for those dates hasn't been announced.
First Korean mini album after Japan-focused run
Sour Grapes is NiziU's first mini album in Korea. Their previous domestic releases were singles. Eighteen months of Japan-only activity — chart runs, arena dates, dome dates — now gives way to a full Korean comeback cycle. The tracklist lands September 15; the album follows two weeks later.
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