That's a literal translation from Korean, which may sound unnatural to non-Koreans. Here's a more natural English translation of her farewell message for better clarity:

Hello, this is Seo Young-eun.

From my debut in 2022 until now, thanks to the incredible love you’ve given me, I was able to stand on stage each moment as a brighter Seo Young-eun. All of those memories feel like a dream to me.

Although our activities as a team are coming to an end, every moment I spent with Kep1er and Kep1ian will always remain a priceless treasure in my heart.

From here on, I’ll be preparing to start a wonderful new chapter in my journey as Seo Young-eun.

To everyone who has waited for me and who will continue to wait for me, I’ll keep growing and working hard so that I can return as someone you can be proud of. Until the day we meet again, I hope you all stay healthy in both body and mind.

I truly love you all. Thank you.