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Chaos Zero Nightmare (CZN)

Guardian of the Ark Event

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S1: Forbidden Catalyst | Nebula Distortion | The Great Rift
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Chaos Zero Nightmare - Guardian of the Ark Event Top Banner

Guardian of the Ark is an event about progressing the exploration record of Laboratory 0 and gives Pure White Fragments as reward in Chaos Zero Nightmare (CZN). Check out how the event works, the rewards, its release date, and duration here!

List of Contents

Guardian of the Ark Event Mechanics

Complete Policy Tasks

Chaos Zero Nightmare - Policy Task Screen
During the event, completing Policy Tasks will yield additional rewards based on how many you completed.

Policy Office Guide

Buy More Policy Tasks in Nono's Shop

Chaos Zero Nightmare - Use Policy
If you are lacking both time and policy tasks done, you can buy more in Nono's Shop at the cost of Policy Point.

Guardian of the Ark Event Rewards

Crystals, Affection and Growth Materials

Policy Count Rewards
6 Universal Tactical Certificate Universal Tactical Certificate x120
12 Exquisite Slice of Cake Exquisite Slice of Cake x5
18 Universal Support Certificate Universal Support Certificate x100
24 Exquisite Slice of Cake Exquisite Slice of Cake x5
32 Potential Disk Potential Disk x120
40 Crystals Crystals x240

You can get affection, universal growth materials and crystals once you reach a total of 40 Policy tasks done.

Guardian of the Ark Release Date and Duration

Lasts Until December 3, 2025

Start Date November 12, 2025 14:59 (UTC+0)
End Date December 03, 2025 14:59 (UTC+0)

Guardian of the Ark event started on November 12, 2025 alongside the release of the new season, Forbidden Catalyst. It will end on December 3, 2025.

Chaos Zero Nightmare (CZN) Related Guides

Partial Banner - Latest News

Latest News and Updates

Events and Game Info
List of Events Bugs and Errors Patch Notes

Current Events

Guardian of the Ark Event Special Exploration Reward - Laboratory 0 Event
See You on the Unigram Event -

Past Events

SS Nightmare Verification Event Launch Celebration Follow and RP Event
Launch Celebration Comment Event Haru Trauma Code Event
Special Daily Attendance Rewards Event -

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