| Track Name | Track Artist | Album Artist | Album Name | Official Purchase/Artist Link | Album Genre | Source Track(s) |
|---|---|---|---|---|---|---|
| ふたりの | 敷き紙 | Over The Coffee | 秘封病特効薬 | Not Available | 他愛も無い二人の博物誌 | |
| ふたりで | 敷き紙 | Over The Coffee | 秘封病特効薬 | Not Available | 少女秘封倶楽部 | |
| ばけねこ | 敷き紙 | Over The Coffee | 秘封病特効薬 | Not Available | 遠野幻想物語 | |
| はこねこ | 敷き紙 | Over The Coffee | 秘封病特効薬 | Not Available | シュレディンガーの化猫 | |
| あおぞら | 敷き紙 | Over The Coffee | 秘封病特効薬 | Not Available | 天空のグリニッジ | |
| べべれけ | 敷き紙 | Over The Coffee | 秘封病特効薬 | Not Available | 二日酔いの同床異夢 |