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Chaos Zero Nightmare (CZN)
List of All Trauma Codes
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Trauma Codes are additional story stages focusing on the intense traumas of the characters in Chaos Zero Nightmare (CZN). Check out and the list of all Trauma Code events and their details, as well what Trauma Codes are and how to unlock them in this guide!
List of Contents
Limited Time Trauma Events List
A Flickering Gleam on a Rusted Anchor
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| Duration | 10/22/2025 - 11/11/2025 This Event Has Ended |
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|---|---|---|---|---|---|---|---|---|---|---|---|
| Rewards and Details | No. of Objectives: 6 Rewards:  Crystals x300 |
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List of All Trauma Codes
Trauma Codes Details
| Trauma Code | Details |
|---|---|
 |
Title: A Flickering Gleam on a Rusted Anchor Key Requirement: Yes No. of Missions: 5 Rewards: A highschool girl with a clear and radiant smile, Haru. The abyss hidden beneath her cheerful demeanor slowly rises to the surface. Where, indeed, is the place anchored by a rusted weight in the darkness? |
 |
Title: Roses Awaiting in the Coming Morning Key Requirement: No No. of Missions: 4 Rewards: Renoa, the cold-blooded first officer once known as the mercenary "the Black Rose." Is what she hides beneath her calm exterior the thorns of old wounds, or the flower that blossomed despite them? |
What are Trauma Codes?
Additional Story Stages
The Trauma Code event is similar to the story stages but is tailored to specific combatants, allowing us to experience their most intense traumas. There are also battle missions that grant additional rewards when certain victory conditions are met.
Story Stages are Still Accessible After the Event
The story stages related to the limited-time event can still be played, and their rewards can be obtained after reaching 100% Synchronization, even if the event has already ended. This gives you the opportunity to experience the combatants’ stories at your own pace.
Limited-Time Event Battles
Upon unlocking the Trauma Code event, you’ll gain access to limited-time battles that offer additional rewards beyond the Trauma Code story stages.
How to Unlock Trauma Code
Clear Epione Center Substory in Chapter 2
Completing Chapter 2’s substory in Episode 5, Epione Center, will unlock access to the Trauma Code event. You can then visit the Epione Center in Ark City to find the Trauma Code option.
Use Special Security Code to Unlock Events
Special Security Codes are used to unlock a specific character’s Trauma Code and gain access to their story missions! You can purchase these items from Nono’s Shop in Ark City for 20 Policy Points each!
How to Get Special Security Code
Trauma Code Rewards
2 Signal Amplification Anchor Upon 100% Synchronization
Play through all the branching story paths and complete all Battle Missions in the Trauma Code to earn every star and reach 100% synchronization. Doing so rewards you with 2 Signal Amplification Anchors in addition to the Crystal rewards you receive for each star.
Chaos Zero Nightmare (CZN) Related Guides
Chaos Zero Nightmare Wiki Front
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List of All Trauma Codes
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