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Zenless Zone Zero (ZZZ)
Trace to the Source Quest Guide
☆ New: Tier List Maker & Community Tier List Contest!
★ Upcoming: Version 2.5, Zhao, & Ye Shunguang!
☆ 2.4 Agents: Dialyn, & Banyue
★ 2.3 Phase 2: Yidhari Release & Ju Fufu Rerun
☆ Tier Lists: Agents | W-Engines | Bangboos | Teams
★ Redeem Codes for free Polychromes!
Trace to the Source is a main quest in Zenless Zone Zero (ZZZ). See how to unlock Trace to the Source, a walkthrough on how to complete this main story commission, its Hollow guide, and its rewards here!
| ◄ Previous Quest | Next Quest ▶ |
|---|---|
| Speedy Chaser | Path of the Proxy II |
Trace to the Source Quest Information
Trace to the Source Main Story Details
| HDD Chapter | Chapter 2 | ||
|---|---|---|---|
| Enemy Level | 28 | ||
| Location | Brant Street, Old Town District | ||
| Client | Koleda | ||
| Difficulty | ⬤⬤⬤⬤〇〇 | ||
| Rec. Attributes |
|
||
| Time | Anytime | ||
Trace to the Source is a Main Story commission that is unlocked after finishing Speedy Chaser.
Trace to the Source is one of the subquests in A Call From the Hollow's Heart. To unlock this commission, Proxies will need to finish the previous quest, Speedy Chaser.
Complete this quest to unlock the next mission in the questline, Path of the Proxy II.
A Call From the Hollow's Heart Quest Guide
How to Unlock Trace to the Source
Complete Speedy Chaser
Trace to the Source is a subquest of A Call From the Hollow's Heart and can only be unlocked upon completing the previous commission in the questline, Speedy Chaser.
Complete this quest to progress through the story and unlock the next commission in the questline, Path of the Proxy II.
Trace to the Source Quest Walkthrough
Trace to the Source Guide
Talk to Koleda and Grace in Brant Street Construction Site
After finishing Speedy Chaser, follow the objectives until it tells you to the Brant Street Construction Site to meet with Koleda.
Some dialogue scenes will play out and Grace will give you the commission.
Complete the Commission Using the HDD
Go back to Random Play and use the HDD System to start the commission.
Trace to the Source Hollow Map
Trace to the Source Hollow Guide
Trace to the Source Hollow Map
| Trace to the Source HDD Map Contents | |
|---|---|
 Map 1 |
 Map 2 |
Hollow Deep Dive System Events and Guide
Step-By-Step Guide
- Get Observation Data 1
- Navigate the Left Machine to the Goal
- Get Observation Data 2
- Navigate the Right Machine to the Goal
- Go Help Grace
- Get Observation Data 3 and Fight the Enemy
Get Observation Data 1
Progress through the map, destroy the first breakable wall and then obtain the first observation data.
Navigate the Left Machine to the Goal
The next section of the puzzle involves you controlling one of the heavy machines (left one) using the control sticks. Destroy the walls by passing through them with the heavy machine.
Before going to the goal however, destroy the walls on the top of the heavy duty grappler since the grappler cannot destroy walls once you control it.
Unfortunately, the heavy machine cannot pass through bombs in the area.
Get Observation Data 2
Go back down and go through the new path to get Observation Data 2. Proceed up to navigate the heavy duty grappler (the machine on the right).
Navigate the Right Machine to the Goal
Control the heavy duty grappler to get to the goal. This one can destroy bombs but cannot destroy walls so make sure that you have destroyed the walls on its way with the other machine.
Go Help Grace
Once the machines are on the goal, an enemy will attack Grace. Go to Grace's location in the map to trigger a fight.
After the fight, some dialogue will play out and Fairy will optimize the algorithm to search for the traget location. Once the target location appears, go there to go the next map.
Get Observation Data 3 and Fight the Enemy
On the second map, you can immediately see the final observation data. Go there and heal up on the safe zone if your health is low and get the other items.
Finally, go to the prototype and fight the enemies to finish the commission.
Trace to the Source Rewards
Quest Rewards
| All Quest Rewards | |||
|---|---|---|---|
 Polychrome x60
|
 Denny x11000
|
 Bangboo Algorithm Module x2
|
|
 Inter-Knot Credit x550
|
 Elite Investigator's Supply Box x2
|
 Senior Investigator's Supply Box x2
|
|
Zenless Zone Zero Related Guides
All Main Commissions
Author
Trace to the Source Quest Guide
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there is a new version of this quest now which is not in TV mode