| 裏世界ピクニック3 ヤマノケハイ | Paperback | 9784150313517 | 2018-11-20 |
| 裏世界ピクニック4 裏世界夜行 | Paperback | 9784150314088 | 2019-12-19 |
| 裏世界ピクニック8 共犯者の終り | Paperback | 9784150315429 | 2023-01-24 |
| 裏世界ピクニック ふたりの怪異探検ファイル | Paperback | 9784150312640 | 2017-02-23 |
| 裏世界ピクニック7 月の葬送 | Paperback | 9784150315092 | 2021-12-16 |
| そいねドリーマー | Paperback | 9784150314651 | 2021-01-07 |
| 裏世界ピクニック2 果ての浜辺のリゾートナイト | Paperback | 9784150313012 | 2017-10-19 |
| 裏世界ピクニック9 第四種たちの夏休み | Paperback | 9784150315733 | 2024-05-22 |
| そいねドリーマー | Paperback | 9784152097835 | 2018-07-19 |
| 裏世界ピクニック10 あり得るすべての怪談 | Paperback | 9784150315900 | 2025-03-19 |
| 裏世界ピクニック5 八尺様リバイバル | Paperback | 9784150314484 | 2020-12-17 |
| 裏世界ピクニック6 Tは寺生まれのT | Paperback | 9784150314767 | 2021-03-17 |
| Side-By-Side Dreamers (English translation) | eBook | ? | 2019-07-01 |
| Otherside Picnic 9: The Fourth Kinds' Summer Holiday (English translation) | eBook | ? | 2025-03-24 |
| Otherside Picnic Omnibus 3 (English translation) | Paperback | 9781718360808 | 2022-06-07 |
| Otherside Picnic Omnibus 2 (English translation) | Paperback | 9781718360792 | 2021-08-17 |
| Otherside Picnic 7: Funeral of the Moon (English translation) | eBook | ? | 2022-06-07 |
| Otherside Picnic: Their Strange Exploration Files (English translation) | eBook | ? | 2019-09-23 |
| Otherside Picnic 3: Yamanoke Presence (English translation) | eBook | ? | 2020-04-12 |
| Otherside Picnic Omnibus 4 (English translation) | Paperback | 9781718360815 | 2024-07-08 |
| Otherside Picnic 8: Accomplices No More (English translation) | eBook | ? | 2023-08-22 |
| Otherside Picnic 5: Hasshaku-sama Revival (English translation) | eBook | ? | 2021-08-19 |
| Otherside Picnic 4: Overnight on the Otherside (English translation) | eBook | ? | 2020-12-27 |
| Otherside Picnic 2: Resort Night at the Beach of the End (English translation) | eBook | ? | 2020-01-11 |
| Otherside Picnic 6: T is for Templeborn (English translation) | eBook | ? | 2021-11-15 |
| Otherside Picnic Omnibus 1 (English translation) | Paperback | 9781718360785 | 2020-12-01 |
| Side-By-Side Dreamers (English translation) | eBook | ? | 2019-07-01 |