MU Online Official

Dear Mutizens,

Following the Season 21 Part 1 'Contract buff and stone' update on Tuesday, July 21, 2026, we identified an issue where the damage reduction penalty was not applied correctly in hunting grounds from the Swamp of Darkness and beyond.
Additionally, the damage boost effects for ‘Contract of Fury’ and ‘Contract Stone of Fury’ were not working properly.

We sincerely apologize for any confusion or inconvenience caused by the mismatch between the damage displayed on your screen and the actual HP deducted from monsters.

Please note that these issues were completely resolved during the regular maintenance on Tuesday, September 15, 2026.
Any items currently placed in your X-Shop Storage or Inventory are working as intended and can be used without any issues.

Furthermore, for players who used these items during the affected period without receiving the proper bonuses, we will be reissuing the items based on how they were acquired and used.

[Compensation Details]

1. Eligible users for compensation
- Accounts that used ‘Contract of Fury’ or ‘Contract Stone of Fury’ from their X-Shop Storage during the affected period.
- Accounts holding ‘Contract Stone of Fury’ in their Inventory after opening Lapidary Stone Box (regardless of whether they were used).

2. Distribution schedule
- Within Wednesday, September 16, 2026 (UTC)

3. Compensation details
- Reissue of items used from the X-Shop Storage.
- Reissue of items obtained from Lapidary Stone Box.

We deeply apologize once again that we could not catch and address these issues sooner

We will do our best to provide a more stable service moving forward.

Thank you.

MU Online Team.