The global music scene is stirring with excitement as popular girl group NiziU officially kicks off the countdown to their upcoming return to the Korean music industry.
Known for their energetic performances, catchy discography, and vibrant stage presence, the nine-member group under JYP Entertainment has captured widespread attention from fans across Asia and beyond.
After building significant momentum with their past Korean releases and extensive domestic activities in Japan, NiziU is now gearing up to showcase a fresh artistic direction through their newest upcoming project.
The official announcement of their return marks an important milestone for the group as they continue to expand their international reach and deepen their connection with global listeners.
Official Release Details and The Dramatic Prologue Trailer
Fans were treated to official confirmation of the group’s schedule when the announcement was officially published at midnight KST on September 7.
The detailed update revealed that NiziU will be making their return with their very first Korean mini album titled “Sour Grapes.”
According to the released schedule, the highly anticipated mini album is set to drop officially on September 28 at 6 p.m. KST across all major digital music platforms worldwide.
The confirmation of the release date has ignited huge enthusiasm across social media platforms, giving supporters a concrete date to look forward to as promotional content continues to roll out.
Alongside the reveal of the comeback date and album title, NiziU dropped a captivating prologue trailer for “Sour Grapes” on their official social media channels and YouTube page.
The teaser video presents a visually striking concept, depicting the members in an intriguing and intense atmospheric setting while eating grapes.
The teaser signals a potential departure or dramatic evolution from their previous lighter concepts, hinting at a deeper aesthetic tone that has left fans eagerly analyzing every detail.
Evolution of NiziU’s Korean Career and High Expectations
The upcoming release of “Sour Grapes” represents a significant moment in NiziU’s ongoing career trajectory within the Korean music market.
Since making their original grand debut in South Korea with their single “Press Play” in October 2023, the group has steadily built a solid fanbase through memorable music videos, live performances, and active promotion on major music shows.
Following up with subsequent releases such as “Love Line” in March 2025, NiziU has continuously demonstrated their versatility as performers while showcasing their growth as a group.
With “Sour Grapes” marking their first official Korean mini album rather than a single release, expectations are at an all-time high for what the complete tracklist will offer.
Fans are anticipating a diverse mix of musical genres, compelling vocal arrangements, and powerful choreography that highlight each member’s unique strengths.
As September 28 approaches, the gradual release of concept photos, track listings, highlight medleys, and music video teasers will provide deeper insight into the theme of “Sour Grapes.”
Listeners around the world remain tuned in to see how NiziU will write the next exciting chapter of their Korean discography.
