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Chaos Zero Nightmare (CZN)

Daily Codex Merging Event Guide

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NEW: Season 2 | Refinement | Arena
✪ Tiphera: Build | Cards | Banner
☆ Tiana: Partner Guide | Banner
✪ Nine: Build | Cards | Banner
See our Endgame Mode Tier List
☆ Tier Lists: Character | Partner | Cards

Free Merge

This is an event page for Daily Codex Merging in Chaos Zero Nightmare (CZN). Learn about the event details, its schedule, and the rewards you get from the event.

List of Contents

Daily Codex Merging Event Info

During the event schedule, up to 2 Codex Merges can be performed for free each day.

Daily Codex Merging Event Schedule

February 25 to April 8 2026

Countdown to Event Release

The Daily Codex Merging event will run from February 25 after the maintenance until April 8 before maintenance.

Chaos Zero Nightmare Related Guides

Partial Banner - Latest News

Latest News and Updates

Permanent Events

Garden Cafe's Returnee Present Event See You on the Unigram Event

Current Events

Chaos Regular Survery Rei's Gift Event
Virtual Tactical Simulation Event Overdrive - Memory Fragment
Into the Depths of Discord Daily Free Codex Merging
Bonds of Time Guardian of the Ark 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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