Regular Event Stages · 5 stages
| # | Stage | Boss | Enemies | Rewards | Base HP |
|---|---|---|---|---|---|
| 1 | Impending Calamity |  Boss Mysterious Calamity |    |  100%1st | 100,000 |
| 2 | Dark Clouds Rising | Boss Mysterious Calamity 150% |     |  100%1st | 170,000 |
| 3 | Decaying Town | Boss Mysterious Calamity 450% |    |  ×1,000,000100%1st | 500,000 |
| 4 | Age of Havoc | Boss Mysterious Calamity 900% |     | ![Catseye [Uber Rare]](/img/item/53.webp){kind=small} ×3100%1st | 700,000 |
| 5 | The Cats Allied | Boss Mysterious Calamity 1400% |      | ![Catseye [Legend]](/img/item/54.webp){kind=small} ×3100%1st | 1,150,000 |