| Operation | Story |
| RI-7 First Come First Served |
The Great Chief Returns: Great Chief's Path Previous RI-ST-2 Next RI-8
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| There's nothing quite like taking an unexpected detour to reach the same destination. <Giant Mushroom> Increases the DEF of neighboring allied units. <Rhodes Island Temporary Employee> Tidies up a Giant Mushroom to create a Ranged tile. | |
| Recommended level | Elite 1 Level 70 | ||
|---|---|---|---|
| Sanity | Drill Plan | EXP | LMD |
| 18 | 1 | 180 (216) | 180 (216) |
| Unit Limit | Initial DP | Life Points | Enemies |
| 8 | 3 | 3 | 70 |
| Deployable devices | Rhodes Island Temporary Employee ×5 | ||
| Static devices | Giant Mushroom ×7 | ||
| First clear | Regular |
|---|---|
3 Stars  3 Stars  80 | Guaranteed 18 Common  |
| Normal | Originium Slug ×28, Tiacauh Warrior ×25, Tiacauh Impaler ×13 |
|---|---|
| Elite | Tiacauh Brave ×4 |
| Recommended level | Elite 1 Level 70 | ||
|---|---|---|---|
| Sanity | Drill Plan | EXP | LMD |
| 18 | 1 | 180 (216) | 180 (216) |
| Unit Limit | Initial DP | Life Points | Enemies |
| 8 | 3 | 3 | 70 |
| Deployable devices | Rhodes Island Temporary Employee ×5 | ||
| Static devices | Giant Mushroom ×7 | ||
| First clear | Regular | Special |
|---|---|---|
3 Stars | Rare | Very Rare  |
| Extra | ||
          | ||
| Normal | Originium Slug ×28, Tiacauh Warrior ×25, Tiacauh Impaler ×13 |
|---|---|
| Elite | Tiacauh Brave ×4 |