Альбом был написан и вышел 25 сентября 2024 года. На саундтрек попало 30 композиций. Подборка является компиляцией оригинальной музыки. Выпуском пластинки занимался лейбл
vap, VAP Inc..
| 1 | Timeless Love Letters to My Classmates (Main Theme) | | |
| 2 | My Youthful Days | | |
| 3 | Disappointed | | |
| 4 | The Existence of Time Capsule | | |
| 5 | My Youthful Days (I'll Write a Novel!) | | |
| 6 | S! U! N! E! O! | | |
| 7 | Timeless Love Letters to My Classmates (Toward A Goal) | | |
| 8 | Lessons from My Father (Effort of Unpopular Man) | | |
| 9 | Uneven Combination | | |
| 10 | Maybe | | |
| 11 | My Youthful Days (Thank You) | | |
| 12 | Timeless Love Letters to My Classmates (Become a Popular Writer Overnight...?) | | |
| 13 | SUNEO DASH! | | |
| 14 | This is a Plagiarism... | | |
| 15 | My Youthful Days (Not Going Well) | | |
| 16 | Giant Swing! | | |
| 17 | "Haru to Gunjo" is... | | |
| 18 | Find Out!? Not Find Out!? | | |
| 19 | Timeless Love Letters to My Classmates (Do My Best) | | |
| 20 | Special Ability of SUNEO | | |
| 21 | Carefree | | |
| 22 | Pure Heart | | |
| 23 | Revealed Truth | | |
| 24 | Timeless Love Letters to My Classmates (A dream that didn't come true) | | |
| 25 | Pile Driver! | | |
| 26 | PROJECT S | | |
| 27 | Timeless Love Letters to My Classmates (Pf Version) | | |
| 28 | MY Mai Maitake | | |
| 29 | Timeless Love Letters to My Classmates (Electro Swing Version) | | |
| 30 | Timeless Love Letters to My Classmates (Title Back) | | |
