Back to School is Koleda's Agent Mission in Zenless Zone Zero 1.0 (ZZZ). See how to unlock the Back to School Agent Commission, a walkthrough on how to complete it, the Koleda Quest Hollow guide, and its rewards here!

Back to School Information

Back to School Quest Details

HDD Chapter	Chapter 2 Interlude
Required Inter-Knot Level	34
Enemy Level	35
Location	Sixth Street, Random Play
Client	Koleda
Difficulty	⬤⬤〇〇〇〇
Rec. Attributes
Time	Anytime

Back to School is one of the subquests in Schoolyard Powerhouse. To unlock this commission, Proxies will need to finish the previous quest, Schoolyard Powerhouse (I).

Complete this quest to unlock the next mission in the questline, Farewell, School.

Schoolyard Powerhouse Quest Guide

Also Known as Villain Not Guilty

This Agent Story also appears as the "Villain Not Guilty" commission under the Schedule.

How to Unlock Back to School

Accept Back to School Commission

Back to School is a subquest of Schoolyard Powerhouse and can be unlocked upon reaching Inter-Knot level 34 and completing the Schoolyard Powerhouse (I) agent commission.

Schoolyard Powerhouse | Koleda Agent Story Guide

Back to School Walkthrough

Use the HDD to Complete the Commission

Access the HDD System inside the Random Play in Sixth Street video store to start and complete this commsission.

Cat on Patrol Hollow Guide

Back to School Hollow Guide

Back to School Full Map and Route

Back to School HDD Map Contents
Map 1	Map 2

Hollow Deep Dive System Events and Guide

Step-By-Step Guide

1. Use the Lever to Explore
2. Break the Sturdy Obstacles with Koleda's Hammer
3. Collect All the Verification Devices
4. Reach the Target and Defeat the Enemies

Use the Lever to Explore

In Map 1, you can use the Lever tile in the middle of the map to turn on the other train track tiles to help you explore and find secret passageways leading deeper into the Hollow.

Back to Full Map and Route

Break the Sturdy Obstacles with Koleda's Hammer

You can use Koleda's Demolition Hammer to break the Sturdy Obstacles tile to reveal hidden Gear Coin Cases, Dennies, and Enemies. Koleda will give you the hammer after the special event in Map 1, which will happen if you keep progressing through the commission.

Back to Full Map and Route

Collect All the Verification Devices

In Map 2, you have to collect all the verification devices scattered around the map, specifically in the northwest, southeast, and middle parts of the map, to open the Sealed Gate to get to the Target.

You will encounter a Lever tile in the north and south parts of the map, helping you get the verification devices. You can also collect all of the Hollow Observation Data while on Map 2.

Back to Full Map and Route

Reach the Target and Defeat the Enemies

On the east side of Map 2, you will reach the Target, defeat a bunch of enemies, and it will trigger a special event with Koleda and Principal Elton afterwards.

The last objective for this commission is to head back to the middle area in Map 2 and defeat the last wave of enemies. Heading back to the middle area in Map 2 will also give you the exit, completing this commission.

Back to Full Map and Route

Back to School Commission Rewards

Quest Rewards

All Quest Rewards
Polychrome x60	Denny x9000	Bangboo Algorithm Module x2
Inter-Knot Credit x450	Elite Investigator's Supply Box x2	Senior Investigator's Supply Box x2

Villain Not Guilty Schedule Rewards

All Quest Rewards
Senior Investigator Log x4	Polychrome x25	Denny x12500
W-Engine Energy Module x2	Inter-Knot Credit x400	Ether Plating Agent x1

Zenless Zone Zero Related Guides

All Agent Commissions

List of All Agent Commissions

Character	Agent Commissions
Nekomata	1. Cat and Mouse Misplaced 2. Cat on Patrol 3. Caught by the Cat Burglar
Soldier 11	1. Passing Off as Fake 2. Deep Treason 3. Mole in the Hole (III)
Grace	1. Grace's Frankenstein 2. The Iron Witch (II) 3. Witch's Trial
Koleda	1. Schoolyard Powerhouse (I) 2. Back to School 3. Farewell, School
Lycaon	1. Thieves and Guardians 2. And the True Heroes are Always Behind the Scenes (II) 3. Liars and Traitors
Rina	1. Until Your Memory Fades (I) 2. Until Your Memory Fades (II) 3. Sweetcakes that Never Expire
Qingyi	1. The Case of a Missing Bangboo (I) 2. The Case of a Missing Bangboo (II) 3. Save Bangboo Teddy

All Commissions Guide