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| Operation | Story |
| WB-8 Ancient Mutters |
Where Vernal Winds Will Never Blow: Case Investigation, Onsite Previous WB-7 Next WB-9
|
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| Someone must make a stand for Yumen. <Yumen Catastrophe Defenses> Units placed here deal more damage to ground units and take less damage from ground units | |
| Recommended level | Sanity | EXP | LMD |
|---|---|---|---|
| Elite 1 Level 60 | 21 | 210 (252) | 210 (252) |
| Unit Limit | Initial DP | Life Points | Enemies |
| 8 | 10 | 3 | 48 |
| First clear | 3 Stars  3 Stars  60 |
|---|---|
| Regular | Guaranteed 21 Uncommon  |
| Normal | Di Beast ×24, Shanhaizhong Skirmisher ×14, Shanhaizhong Desperado ×6 |
|---|---|
| Elite | "Sandwalker" ×4 |
| Recommended level | Sanity | EXP | LMD |
|---|---|---|---|
| Elite 1 Level 60 | 21 | 210 (252) | 210 (252) |
| Unit Limit | Initial DP | Life Points | Enemies |
| 8 | 10 | 3 | 48 |
| First clear | 3 Stars |
|---|---|
| Regular | Uncommon  |
| Special | Very Rare  |
| Extra |           |
| Normal | Di Beast ×24, Shanhaizhong Skirmisher ×14, Shanhaizhong Desperado ×6 |
|---|---|
| Elite | "Sandwalker" ×4 |