| Original title | カストルとさよなら |
| Romanized title | Kasutoru Tosayonara |
| Release date | 2019-12-28 |
| Price | ¥ 1493 |
| Pages | 90 |
| Adult Content | Yes |
| Anthology | No |
| Copybook | No |
| Novel | Yes |
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| Created at | 2020-01-04 08:09:18 |
| Updated at | 2020-01-04 08:09:18 |
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