Girl group NiziU is making a comeback with their first Korean mini album 'Sour Grapes'.

According to the scheduler image released on the 9th through their official SNS channels, NiziU will sequentially release content starting with an online cover on the 10th, followed by concept photos from the 11th to the 13th, album detail preview on the 14th, tracklist on the 15th, concept films from the 16th to the 17th, and a highlight medley on the 24th. In addition, mystery content is teased for dates marked with question marks — the 18th, the 21st to the 23rd, and the 27th — drawing anticipation from fans.

This comeback marks the group's first domestic activity in a year and six months, following their second single album 'LOVE LINE' released in March of last year. This year, NiziU released their second EP and first best album in Japan, and successfully completed arena and dome tours, proving their strong influence in the region.

Notably, the new release carries the title 'Sour Grapes', evoking Aesop's fable 'The Fox and the Grapes', drawing keen attention to the new charm NiziU will showcase.

NiziU's first Korean mini album 'Sour Grapes' will be officially released on September 28 at 6 p.m.

Photo provided by: JYP Entertainment