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Disc1
| 1 | paper castle | ChouCho | 4:13 |
| 2 | transient blue | ChouCho | 4:25 |
| 3 | Answer | ChouCho | 4:48 |
| 4 | Authentic symphony -Acoustic ver.- | ChouCho | 5:33 |
| 1 | paper castle | ChouCho | 4:13 |
| 2 | transient blue | ChouCho | 4:25 |
| 3 | Answer | ChouCho | 4:48 |
| 4 | Authentic symphony -Acoustic ver.- | ChouCho | 5:33 |