Located in the center of a remote island, the Abyss is the last unexplored region, a huge and treacherous fathomless hole inhabited by strange creatures where only the bravest adventurers descend in search of ancient relics. In the upper levels of the Abyss, Riko, a girl who dreams of becoming an explorer, stumbles upon a mysterious little boy.
| Title | Time | |
|---|---|---|
| 1 | The City of the Great Pit | 2017-07-07 |
| 2 | Resurrection Festival | 2017-07-14 |
| 3 | Departure | 2017-07-21 |
| 4 | The Edge of the Abyss | 2017-07-28 |
| 5 | Incinerator | 2017-08-04 |
| 6 | Seeker Camp | 2017-08-11 |
| 7 | The Unmovable Sovereign | 2017-08-18 |
| 8 | Survival Training | 2017-08-25 |
| 9 | The Great Fault | 2017-09-01 |
| 10 | Poison and the Curse | 2017-09-08 |
| 11 | Nanachi | 2017-09-15 |
| 12 | The True Nature of the Curse | 2017-09-22 |
| 13 | The Challengers | 2017-09-29 |
