Written, composed, arranged, and produced entirely by DIA, “A Secret” is a dreamy synth-pop track that drifts like floating through the sky, carrying a lingering sense of longing that refuses to fade. One day, while flying through the sky, love quietly began. That encounter remains like a “brilliant mistake.” It was dazzlingly beautiful, yet a moment that eventually returned as a wound. For the first time, the earth itself felt cruel. Because it was simply too vast, the person who had disappeared felt even farther away. To the one who left, saying they wanted to remain a good person, there remains a quiet wish: even if it means becoming a bad memory, just to see them one last time. “A Secret” is a record of that day— the day left behind in solitude. Credit： Lyrics by DIA Composed by DIA Arranged by DIA Produced by DIA Piano by DIA Mixed by Park Jaewon (Glueblue Studio) Mastered by Jo Kwonho (Glueblue Studio)