Patch Note - September 15th

From my battle to our war, MMORPG MIR4

Greetings, This is MIR4.

Here's what's coming with the update maintenance on Tuesday, September 15th.

1. New Events

2. Special Summon for Legendary Spirit

<September 15 Patch Notes Details>

■ Events

1. Ringring's 28-Day Check-in

2. Black Dragon's Gift Box

※ Please refer to for further details.

■ Boosting World Server Exclusive Events

- These are events that are only held on the Boosting World server.

1. Boosting World Piggio's Happy Recharge

※ Please refer to <Boosting World Piggio's Happy Recharge> for further details.

■ Update Details

1. Legendary Spirit Special Summon

• Special Summon for the Legendary Party Leader Spirit 'Priest of Light Cheonho' will be held.

• Special Summon Period: September 15, 2026 Update ~ October 13, 2026 Update

■ In-Game Improvements and Bug Fixes

1. [Conquests] Fixed an issue where the [Move] button for certain Conquest promotion requirements did not function properly.

2. [Mount] Fixed an issue where the mount sounds for <Feline Kart / Bao Kart> would occasionally play from other users' Mounts.

3. [Constitution] Fixed an issue where materials required for the next Stage were displayed incorrectly when using the feature to promote to the maximum Stage.

4. [Spirit Summoner] Fixed an issue where the visual effects for basic attacks and certain skills were displayed incorrectly.

5. [Spirit Summoner] Fixed an issue where the outfit preview was not displayed during character creation.

6. Improved the Bag Expansion Ticket and Warehouse Expansion Ticket items so that the [Sell] button is no longer displayed.

7. Modified the placement of some monsters in the 'Redmoon Gorge 2F', '[Elite] Redmoon Gorge 2F', and '[Layer 3 World 7] Redmoon Gorge 2F' fields.

8. Updated the payment system used in the Huawei app to the latest version.

9. Fixed various in-game typos.