Hello.
This is the Gravity Co., Ltd. Ragnarok Online: Zero Operations Team.
Here is the notice regarding the maintenance time and updates for the regular maintenance on June 17 (Wed).
■ Maintenance Time
- All Servers: 10:00 ~ ~17:00~ 16:30 (Completed)
■ Maintenance Details
1. Summer season costume sales will begin.
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Period: After regular maintenance on June 17, 2020 ~ Before regular maintenance on July 1, 2020
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List:
Himmelmez's Wig Box, 
Costume Baphomet Hat, 
Costume Baby Polar Bear, 
Costume Sunday Hat,
Costume Balloon Hat, 
Costume Half Rim Glasses, 
Costume Bubble Gum in Mouth, 
Costume Scooter Hat, 
Costume Elder Crown,
Costume Lightning Speed, 
Costume Charming Ribbon, 
Costume Black Cat Hat, 
Costume Seraphim Coronet,
Costume Orange Tabby Cat, 
Costume Bunny Headress, 
Costume Straight Long (Black), 
Costume Tail Hat,
Costume Rose Headband, 
Costume Beachball, 
Costume Shark Hat, 
Costume Mermaid Bubbles -
The "Find the Rare Costume Among the Season Costumes!" event will be held.
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New season costumes can also be obtained from the 3:1 Exchange Box during the event period,
and will be removed from the 3:1 Exchange Box list when the event ends. (Added)
2. 1 new combination costume will be added.
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Can be crafted through Race La Zard in Prontera (prontera 88 330).
Costume Frozen Crystal Wings3. The Patriots and Veterans Month event will be held.
- Period: After regular maintenance on June 17, 2020 ~ Before regular maintenance on July 1, 2020
4. The 
Popcorn Festa event will end, and related items will be deleted.
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List of items to be deleted:
Blazing Bead, 
Healthy Herbs, Popcorn, 
Golden Corn, 
Gourmet Butter Popcorn -
The event option on the
Costume Popcorn Wig will be removed.
5. Fixed an issue where the navigation guide would not end even after arriving at the destination location indicated by the navigation guide.
6. Fixed an issue where certain monsters were not dropping some cooking ingredients as indicated in the Tip Box.
7. A physical option has been added to the random options when the '
Nemesis' item drops.
8. Fixed an issue where some options of the 
Diabolus Ring and 
Dark Bacilium items were not being applied to certain monsters.
Please familiarize yourself with the maintenance details so that there is no inconvenience in your gameplay.
Thank you.
Gravity Co., Ltd. Ragnarok Online: Zero Operations Team