Greetings Agents,

After the update on May 13, 2026, [Mock Battle] content will end, and some acquirable rewards from the corresponding content will be moved to the new content reward. 
 

In addition, the craft category/Mission related to Mock Battle will be changed as well.

Please refer to the details below:

▶ Pre-notice of May 13 Update Changes
 

• Mock Battle End
  • [Mock Battle] content will end.
  • Entry NPC in area will be removed, but clear reward is acquirable by entering Mock Battle entrance screen at ‘Special’ group from <Unified Entry System>. 

※Mock battle dungeon can be entered before maintenance on May 13, 2026.

○ [Agent rank check] quest will be removed.

• Mock Battle Clear Reward
  • Some rewards from Mock Battle Clear Reward will be moved to [Unlimited Crash] participation reward.

※ Mock Battle Clear Reward is acquirable before maintenance on May 16th, 2026 4:00 am UTC.

• Mock Battle Rank
  • Mock Battle Rank will be removed.

※ Mock Battle Rank Reward is unavailable after May 23rd, 2026 4:00am.

• Mock Battle Craft Category Change
  • [Mock Battle] category will be removed from craft machine. 
  • Items that could be crafted in the [Mock Battle] category will be crafted in the [Unlimited Crash] category. 
    ※ Craft recipe and materials remain unchanged.
• New/Return Mission Change
  • '[Mock Battle] (HARD) Clear' mission will be changed to [Break Challenge : Machine King] lower dungeon clear
    ※ Mission completion and reward acquisition status will be maintained.

Please refer to the above information and enjoy your time in the game!
Thank you for your attention.

If you experience any other bugs or issues, please contact us via email at support@closersonline.com or submit a Customer Support inquiry by clicking the banner below.