Shiyu Defense Guide - Strategy & Rewards | Zenless Zone Zero (ZZZ)

Shiyu Defense Guide for Zenless Zone Zero (ZZZ). See how to unlock, obtain Soukaku, complete Third Frontier, rewards list, Stable Node tips, best team & squad.

Table of Contents

Weaknesses & Resistances of Each Stage
Shiyu Defense Strategy & Tips
Shiyu Defense Rewards
Overview and How to Unlock

Training & Challenges
Combat Simulation	Routine Cleanup	Expert Challenge
Notorious Hunt	Hollow Zero	Shiyu Defense

Weaknesses and Resistances of Each Stage

Data shown is as of August 16.

First Frontier
Enemy Lv. 50
Weakness [First half] [Second half]
Resistance [First half] N/A [Second half] N/A
Second Frontier
Enemy Lv. 53
Weakness [First half] [Second half]
Resistance [First half] [Second half]
Third Frontier
Enemy Lv. 55
Weakness [First half] [Second half]
Resistance [First half] N/A [Second half]
Fourth Frontier
Enemy Lv. 58
Weakness [First half] [Second half]
Resistance [First half] [Second half]
Fifth Frontier
Enemy Lv. 60
Weakness [First half] [Second half]
Resistance [First half] N/A [Second half]
Sixth Frontier
Enemy Lv. 65
Weakness [First half] [Second half]
Resistance [First half] N/A [Second half]
Seventh Frontier
Enemy Lv. 70
Weakness [First half] [Second half]
Resistance [First half] N/A [Second half]

First Frontier
Enemy Lv. 40
Weakness
Resistance
Defensive Assist deals 100% more Daze and Assist Follow-Up deals 100% more DMG.
Second Frontier
Enemy Lv. 43
Weakness
Resistance
Dodge Counter deals 150% more DMG.
Third Frontier
Enemy Lv. 45
Weakness [First half] [Second half]
Resistance
When EX Special ATK is activated, Agent deals 35% more DMG and receives 25% less DMG, lasts 15s.
Fourth Frontier
Enemy Lv. 48
Weakness [First half] [Second half]
Resistance
Agent Daze increases 30%. Enemy takes 20% longer to recover from Stun.
Fifth Frontier
Enemy Lv. 50
Weakness [First half] [Second half]
Resistance [First half] [Second half]
When Perfect Assist is activated, Agent deals 35% more DMG and receives 25% less DMG, lasts 15s.
Sixth Frontier
Enemy Lv. 53
Weakness [First half] [Second half]
Resistance
Agent's Anomaly Buildup increases 30%. Enemy with Anomaly deals 25% less damage, lasts 10s.
Seventh Frontier
Enemy Lv. 55
Weakness [First half] [Second half]
Resistance
When Perfect Assist is activated, Agent deals 10% more DMG and receives 10% less DMG. Stacks up to 3 times, lasts 15s. Each stack counts down separately.
Eighth Frontier
Enemy Lv. 60
Weakness [First half] [Second half]
Resistance
When Perfect Assist or Perfect Dodge is activated, Agent deals 40% more DMG and gradually recovers 5% HP, lasts 5s.
When Agent takes damage when the effect above is activated, the buff and HP recovery stops.

Shiyu Defense Strategy & Tips

Use Attribute that gets a Buff

Each stage gives you a buff for a specific Attribute. This Attribute also matches with the enemies' weakness so it's highly recommended to use that Attribute. However, if you don't have a character strong enough you won't be able to win just because of the buff, so you can use other Attributes if you wish.

Gets Harder after Fourth Frontier

The enemy level gets high as you progress through the stages. When the enemies reach Lvl 30 it will be difficult to complete if you're still in Chapter 2, so progress the story to raise your Reputation first.

How To Raise Reputation Rank

Complete 5th Frontier to Unlock Disputed Node

You can unlock Disputed Node if you complete the 5th Frontier in the Stable Node. Disputed Node has no time limit, instead the target is the number of times your Agents went down in battle.

Complete 10th Frontier to Unlock Critical Node

You unlock Critical Node by completing 10th Frontier in Stable Node. The stages will be changed at 4:00 of the 1st and 16th day of each month.

Initial Goal is Completing the 3rd Frontier

When you complete the Third Frontier in Shiyu Defense Stable Node, you can obtain the Ice Attribute character, Soukaku. There are many enemies in the early game that are weak against Ice, so we recommend trying to get Soukaku early on. Once you unlock Shiyu Defense, prioritize completing the Third Frontier.

Soukaku Best Build & Team

Third Frontier is Relatively Easy

The First, Second and Third Frontier in Stable Node should not be too difficult to complete. The characters you get early in the game, including the Pre-Registration Rewards, have Attributes that the enemies are weak against. This means all players have a chance to get Soukaku, so it's definitely worth going for.

Stage	Best Attribute	Best Characters
1st Frontier	Physical Ice	Billy Corin
2nd Frontier	Electric	Anby
3rd Frontier	Ether	Nicole

No Need to Worry about Results

You just need to complete the Third Frontier, the grade you get at the end won't matter. You can leave the later stages for when your characters become strong enough.

Shiyu Defense Rewards

Complete Stable Node 3rd Frontier to obtain Soukaku
Get up to 300 Polychromes in each stage
W-Engine Chips and Master Copies to get Equipment
Exchange Investigation Merits to get Items

Complete 3rd Frontier to obtain Soukaku

Complete the Third Frontier in Stable Node to obtain Soukaku. You can receive the reward from the Menu Screen → Events (on the right side of the screen) → Eridu Frontier

Soukaku Agent Details

Get up to 300 Polychromes

W-Engine Chips and Master Copies

W-Engine Chips can be used at the Gadget Store to purchase W-Engines and Master Copies can be used to create Drive Discs. Getting rewards in Shinyu Defense will be one of your options if you want more equipment.

How to Create Drive Discs

Exchange Investigation Merits to get Items

The NPC named Casper who is standing outside the Outpost will exchange your Investigation Merits with items. His stock refreshes once a month, so remember to get the items you need before the end of the month.

Stable Node Rewards List

First to Fourth Frontier

Grade	Rewards
S	Polychrome×100 Investigation Merits×200 Denny×20,000
A	Polychrome×100 W-Engine Chips×1 Denny×15,000
B	Polychrome×100 Audio Booster Master Copy×5 Denny×10,000

Fifth to Sixth Frontier

Grade	Rewards
S	Polychrome×100 Investigation Merits×200 Denny×20,000
A	Polychrome×100 W-Engine Chips×1 Denny×15,000
B	Polychrome×100 Noise Reduction Master Copy×5 Denny×10,000

Seventh to Tenth Frontier

Grade	Rewards
S	Polychrome×100 Investigation Merits×200 Denny×20,000
A	Polychrome×100 W-Engine Chips×2 Denny×15,000
B	Polychrome×100 Noise Reduction Master Copy×10 Denny×10,000

Related Articles
Stable Node Stage 9	Stable Node Stage 10

Disputed Node Rewards List

First and Second Frontier

Grade	Rewards
S	Polychrome×80 Investigation Merits×200 Denny×20,000
A	Polychrome×60 W-Engine Chips×1 Denny×15,000
B	Polychrome×60 Noise Reduction Master Copy×5 Denny×10,000

Third to Eighth Frontier

Grade	Rewards
S	Polychrome×80 Investigation Merits×200 Denny×20,000
A	Polychrome×60 W-Engine Chips×2 Denny×15,000
B	Polychrome×60 Noise Reduction Master Copy×10 Denny×10,000

Overview and How to Unlock

Difficult Battles with a Time Limit

Shiyu Defense is a difficult challenge where you need to defeat all enemies within the time limit. You can get rewards such as Polychromes and Master Copies depending on how fast you defeat all the enemies. There are 2 sections; Stable Node which has 10 stages that are fixed and Critical Node which has stages that get updated periodically.

Stable Node	- 10 stages - Complete 1 stage to unlock the next - First time completion rewards only
Critical Node	- Complete all 10 stages in Stable Node to unlock - Stages are updated periodically - You can receive rewards after every update

Unlocked in Main Story Chapter 2

Shiyu Defense is unlocked during Main Story Chapter 2. You can access it from the Outpost Interior, on the left of Hollow Zero. You can also access it from your Compendium.

Storyline Walkthrough Guide