YCS is credited (lyricist & composer) on 2 songs here; 2 have karaoke numbers. Credits come from TJ Media chart listings, so only karaoke-charting songs appear.
| Song · Artist | Numbers (tap to copy) | Year |
|---|---|---|
| 너SYSTEM SEOUL,ycs · lyricist·composer | 2025 | |
| WISH YOU 행복SYSTEM SEOUL,ycs,sn7 · lyricist·composer | — |