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Patch Note

Patch Note - September 30th


From my battle to our war, MMORPG MIR4


Greetings, This is MIR4.


Here's what's coming with the update maintenance on Tuesday, September 30th.


◈Update Summary◈

1. New Events

2. Secret Peak Demon Summon Badge Crafting Improvements

3. Promotion requirements for the Conquest <Holy Shrine> will be changed.


[September 30th - Patch Note Details]


■ Boosting World Event

1. Yiun's 28-Day Accumulated Check-in II


※ Please refer to the [Yiun's 28-Day Accumulated Check-in II] notice for further details.


■ New Events

1. Harvest Festival 14-Day Check-in

2. Dragon's Gift Box

3. Legendary Spirit Treasure Challenge Event


※ Please refer to [Mir's Harvest Festival Event1 Round-up] for further details.


■ Update Details

1. The crafting formula for Secret Peak Demon Summon Badge will be improved

- The required materials for crafting certain Summon Badges have been reduced.

Summon Badge
Before
After
Material 1
Material 2
Material 1
Material 2
Giant Gorefiend Summon Badge
[UC] Blood Soul Crystal x20
[UC] Celestial Soul Crystal x20
[UC] Blood Soul Crystal x15
[UC] Celestial Soul Crystal x15
Venom Mudcreeper Summon Badge
[UC] Blood Soul Crystal x15
[UC] Celestial Soul Crystal x15
[UC] Blood Soul Crystal x12
[UC] Celestial Soul Crystal x12
Furious Dusk Armado Summon Badge
[UC] Blood Soul Crystal x25
[UC] Celestial Soul Crystal x25
[UC] Blood Soul Crystal x18
[UC] Celestial Soul Crystal x18


2. Promotion requirements for the Conquest <Holy Shrine> will be changed.

- Required Clan Cooperation Count for the promotion of the Holy Shrine has been improved.

Conquest Name
Before Change
After Change
[Stage 10] Holy Shrine
Clan Cooperation 370 times
Clan Cooperation 200 times
[Stage 12] Holy Shrine
Clan Cooperation 600 times
Clan Cooperation 300 times
[Stage 14] Holy Shrine
Clan Cooperation 1300 times
Clan Cooperation 400 times
[Stage 17] Holy Shrine
Clan Cooperation 1500 times
Clan Cooperation 800 times


3. Legendary Spirit Special Summon will be held.

- The Special Summon for the Legendary Party Leader Spirit ‘Forest Fairy Lara’ will be available.

- Event Period: After the update on September 30th, 2025 ~  Before the update on October 28th, 2025


■ Bug Fixes & Gameplay Improvements

1. [Lionheart] Fixed an issue where some main quest cutscenes were abnormally displayed.

2. [Lionheart] Fixed an issue where hit effects were not displayed when affected by ‘Horror’ while using the skill Terrorizing Crash.

3. Fixed an issue where the effects of the in-shop menus ‘Dragon Sphere Summon’ and ‘Legendary Spirit Summon’ were abnormally displayed.

4. Corrected certain typos in the game.