On February 9, 2025, LUMINOUS, the four-member boy group under SE Group Entertainment, announced their disbandment after nearly four years of activity. The group, consisting of Youngbin, Suil, Steven, and Woobin, shared this news through an official statement from their agency and heartfelt handwritten letters to their fans, known as LUMINI.

In the official statement, SE Group Entertainment expressed gratitude to the fans who supported LUMINOUS since their debut in 2021. The agency explained that after extensive discussions, both the company and the members agreed to conclude their contracts and group activities. They conveyed deep appreciation to all fans who have shown unwavering love and support throughout the group's journey. Following the announcement, the members individually addressed their fans through handwritten letters, expressing their emotions and gratitude. 

LUMINOUS debuted on September 9, 2021, with their mini-album "YOUTH," featuring the lead single "RUN." Over the years, they released several projects, including their first studio album, "Luminous in Wonderland," in August 2022. Their music often centered around themes of youth, perseverance, and growth, resonating deeply with their audience.

As the members embark on new individual paths, SE Group Entertainment has expressed its support for their future endeavors. Fans are encouraged to continue their unwavering support for Youngbin, Suil, Steven, and Woobin as they pursue new opportunities.

The disbandment of LUMINOUS marks the end of a significant chapter for the group and their fans. Their contributions to the K-pop industry and the memories shared with LUMINI will be cherished as they move forward into new beginnings.

The Official Announcement Reads:

Hello, this is Barunson WIP.

We sincerely thank all the fans who have loved and supported the members of LUMINOUS.

After extensive discussions and careful consideration, we, along with the members of LUMINOUS, have decided to end their contracts and activities as ‘LUMINOUS.’

We would like to express our deepest gratitude to all the fans, including LUMINI, who have always shown love and support for the members’ efforts and growth over the past three years since their debut in 2021.

Barunson WIP wholeheartedly supports the new beginnings of the members who have worked together with us.

We hope that the experiences gained over the past three years will serve as a strong foundation for Youngbin, Suil, Steven, and Woobin in their new journeys. We kindly ask fans to continue showing unwavering support and interest in the members' future endeavors.

Thank you.

The Translations of the letters are as follows:

Hello, this is LUMINOUS’s Suil.

I feel sorry to deliver such heavy news to LUMINI, who have always waited for us.

Thanks to LUMINI, who always supported and loved us, I was truly happy while promoting as LUMINOUS. The cheers, the eyes filled with love from the audience, and the sounds of support were moments that made me feel alive. The kind words and heartfelt letters from fans were always a great source of comfort for me.

I never wanted to write such a sad message, and it’s still hard to believe this is happening. The time I spent with LUMINI and the members was incredibly precious and will remain unforgettable. I have treasured every moment on stage, and the memories I created with LUMINI will forever stay in my heart.

To my fellow members, who have always looked in the same direction as me, supported each other, and run forward together, I am grateful and sorry. To our CEO, who provided us with guidance despite our shortcomings, I sincerely thank you.

I worried a lot about how to say this without hurting LUMINI. Even as I write this, I am hesitant, but I am mustering the courage to express my feelings.

I hope that LUMINOUS can remain a meaningful part of your journey, a treasured page in your story. While our time as a group has come to an end, I will carry these memories with me for a lifetime.

To LUMINI, the members, our company, and our staff, I offer my deepest gratitude. I hope the love and support we’ve shared can be gathered and preserved as something precious.

Thank you.

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Hello!

This is LUMINOUS’s Youngbin!

I am truly grateful that I was able to spend such a happy time as a member of LUMINOUS for the past three and a half years.

To LUMINI, who have always supported me, loved me, and cheered me on despite my shortcomings, I sincerely thank you.

For me, these years were incredibly precious and filled with beautiful moments that I will never forget for the rest of my life. Once again, I truly appreciate everything.

Even though I will no longer be “Youngbin” of LUMINOUS, I plan to continue promoting under the name “Byungil.” I hope you will continue to support me in my future endeavors.

And to my fellow members—Suil, Steven, and Woobin—I love you all so much.

LUMINI! I love you dearly, and I will always be cheering for you so that the path you walk shines brightly.

Lastly, to LUMINI: "Thank you so much.

" Goodbye.

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Hello, this is Steven.

First, I want to sincerely thank you for always being with us and creating beautiful memories together.

The three years I spent with LUMINI as a member of LUMINOUS were incredibly special to me, and I will never forget them.

Although I will no longer be promoting as LUMINOUS, I will always cherish LUMINI in my heart and treasure our memories together.

Moving forward, I hope that we can continue to support each other in our respective paths.

LUMINI, I truly love you, and I am proud to have been surrounded by such warm, kind, and lovely fans who always filled my days with laughter. It has been an honor to be with you all.

From the bottom of my heart, thank you.

I was LUMINOUS’s Steven until now.

2021.9.9 ~ 2025.2.9

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Dear My Light, LUMINI

Hello, this is Woobin. LUMINI, are you doing well?

I wasn’t sure how to start this letter, but I will try to put my thoughts into words. Writing a letter to LUMINI like this feels a bit unfamiliar, and delivering such sudden news makes me feel truly sorry.

More than anything, I feel regretful toward LUMINI, who know me better than anyone. I worried a lot about how to bring this up and whether my words might cause sadness.

Looking back, I think I spent a lot of time wondering how I could repay you with good performances. When you looked at me, your eyes were always filled with love, sometimes even more than from my own family. Thanks to you, I was able to shine brightly during this time.

LUMINI are my pride and my light.

I hope you continue to walk a beautiful path ahead. Our time together has been full of precious moments, hasn’t it? I hope you enjoyed our journey as much as I did. I had so much fun and was truly happy!

Thank you for creating unforgettable memories with me.

I wanted to show my gratitude through my actions rather than just words, but I regret that I couldn’t do more. Still, LUMINI, I will do my best to become an even better version of myself.

Please continue to support me! The weather is getting colder these days, so make sure to stay warm and eat well.

This has been Woobin of LUMINOUS.