| Track Name | Track Artist | Album Artist | Album Name | Official Purchase/Artist Link | Album Genre | Source Track(s) |
|---|---|---|---|---|---|---|
| Flower note | FLYER | Sharp Eight | Harder Secrets | Link | 未知の花 魅知の旅 | |
| GENSOU Manufacture | FLYER | Sharp Eight | Harder Secrets | Link | 幻想科学 ～ Doll's Phantom | |
| as long as 53 minutes | FLYER | Sharp Eight | Harder Secrets | Link | 53ミニッツの青い海 |