Affinity Guide for Chaos Zero Nightmare. See how to increase Agent Affinity friendship bond levels, unlock Special Lobby screen menu, get Unigram message, rewards and more in CZN.
Table of Contents
CZN Affinity Use
Increase Combatant Stats
| Stats Upgrade |
| Each level |
The biggest benefit of raising Affinity is that your Status will be upgraded according to the level. The level can be raised up to a maximum of 40, increasing ATK, DEF, and HP.
Status Upgrade Values at Level 40 (Max)
| ATK | DEF | HP |
| +39 | +13 | +39 |
This upgrade value is the same for all Combatants, regardless of their rarity.
You Can Get Crystals
| Obtain Crystals |
| 5 per level (195 at max level for each Combatant) |
You can get 5 Crystals each time your Affinity level increases by 1. The amount is small, but it can be a useful way to get them when you need Crystals immediately.
Unigram Unlocked at Specific Levels
| Unigram | ||
| Level 3 | Level 13 | Level 15 |
For Combatants that have Unigram implemented, a new Unigram will be unlocked when they reach Affinity levels 3, 13, and 15 respectively.
Get Stickers and Special Lobby
| Get Sticker | Get Special Lobby |
| Level 7 | Level 10 |
At level 7, you'll get a "Sticker" to decorate your Save Data, and at level 10, you'll get a Special Lobby that lets you change the home screen background.
CZN How to Increase Affinity
Give Gifts
Giving gifts to Combatants is the most efficient way to raise Affinity. Gifts can be obtained from Nono's Shop, through Policy, and other sources.
Gain More Points with Preferred Gifts
When you give a Combatant a gift they prefer, you will get an additional 20 points.
| Note! | Unless you have a specific reason, such as "I want to raise this Combatant's Affinity," you should only give preferred gifts. |
Points Gained by Item Rarity Quick Reference Chart
| Item | Points Gained |
 Legendary | [Normal] 120 points [Preferred Gift] 140 points |
 Rare | [Normal] 60 points [Preferred Gift] 80 points |
 Common | [Normal] 30 points [Preferred Gift] 50 points |
Points Gained Decrease if Happiness is 20 or less
Be aware that if the Policy Office's Happiness is 20 or less, the Affinity gained from gifts will be reduced by 50%.
Increase Efficiency at the Research Facility
By conducting specific research at the Research Facility in Ark City, you can increase Affinity more efficiently.
Research That Increases Efficiency
| Position | Details |
| Upper Row 15-20 | Raise the Affinity of Agents you take on Excursions by 4 |
| Upper Row 20-25 | Raise the Affinity gained from Gifting by 5 |
| Upper Row 80-85 | Raise the Affinity of Agents you take on Excursions by an additional 6 |
| Upper Row 85-90 | Raise the Affinity gained from Gifting by an additional 5 |
Advance Policies
Affinity also increases when you advance the selected Combatant's Policy. Regardless of the Policy's Grade, you can gain 20 each time.
Go on Excursions
In Ark City, you can go on an "Excursion" with characters that appear by selecting the icon at each location. A Communication Pass is required for an "Excursion," and you can do it up to three times a day.
Registering as a Favorite in Unigram Guarantees Appearance
The characters that appear for Excursions are random, but if you register them as a favorite in Unigram, they are guaranteed to appear. You can register up to 3 characters, so be sure to register the characters whose Affinity you want to raise.
Also Increases Through Treatment
Counseling a Combatant in a Deep Trauma state with a Communication Pass will increase their Affinity. However, be aware that you will not gain Affinity if you use a Unit for Memory Erasure.
Chaos Zero Nightmare Related Guides
Galactic Disaster 
The Great Rift
Nebula Distortion
Memory Encroachment
Early Game Guide
Daily Tasks
Recommended Gacha Banner
Ark City Guide
Card Epiphany Activation
How to Use Ego Skill
Stress Management
Weakness Attribute Guide
Safe Zone Guide
How to Restore Aether
How to Raise Captain Grade
ID Card Settings
Battle Pass (Arkhianon Supply) Guide & Should You Buy?
Simulation Guide
Twin Star's Shadow Guide
How to Download & Sync Data
Deep Trauma Guide
Latest Updates 
Intermediate Captain Promotion Guide
Unigram Guide
Character Enhancement Guide
How to Set and Upgrade Partner
How to Upgrade Potential
How to Use Save Data
How to Upgrade Manifest Ego
Memory Fragments 
Prism Modules
Daily Reset Time
Zero System
Counseling Guide
Omega Codes
Redeem Codes
Zero System Guide
Basin of Hyperspace Guide
