Contest Rival, also known as Grace's Frankenstein, is Grace's first Agent Story in Zenless Zone Zero (ZZZ). See how to unlock the Contest Rival commission, a walkthrough on how to complete it, a Hollow guide for Grace's Frankenstein, and its rewards here!

Grace Agent Stories
Grace's Frankenstein	The Iron Witch (II)	Witch's Trial

Contest Rival Information

Grace's Frankenstein Quest Details

HDD Chapter	Chapter 2
Enemy Level	35
Location	Brant Street, Old Town District
Client	Grace
Difficulty	⬤⬤〇〇〇〇
Rec. Attributes
Time	Anytime

Grace's Frankenstein is one of the subquests in The Iron Witch. Accepting that commission will unlock several quests under it, which can all be completed at different times to finish the questline.

The Iron Witch Quest Guide

Appears as Contest Rival in the Schedule

The Grace's Frankenstein Agent Story appears as the Contest Rival in the Schedule.

How to Unlock Contest Rival

Complete the Chapter 2 Interlude: Mission Unthinkable

Contest Rival and Grace's Frankenstein can be unlocked after completing the Chapter 2 Interlude: Mission Unthinkable.

Chapter 2 Interlude: Mission Unthinkable

Accept the Iron Witch Agent Story

You can start this Agent Story after accepting the Iron Witch Agent Story in the Video Archive inside the Random Play video store.

The Iron Witch Grace Agent Story Guide

Contest Rival Walkthrough

Contest Rival Quest

1. Talk to Grace in Brant Street
2. Use the HDD to Complete the Commission
3. Return to Brant Street and Talk to Grace
4. Go to Random Play and Talk to Belle

Talk to Grace in Brant Street

Talk to Grace in the second floor of the construction building in the middle of Brant Street. You can reach the second floor by taking the elevator in one of the corners of the cinstruction building.

All Maps and Travel Guides

Use the HDD to Complete the Commission

After accepting the commission, go to Random Play video store and access the HDD System to start and complete the special commsission.

Return to Brant Street and Talk to Grace

Upon finishing the special commision in the HDD System, go back to Brant Street and talk to Grace about the old heavy machine base.

Go to Random Play and Talk to Belle

Go inside the Random Play video store in Sixth Street and talk to the other Proxy about everything that you and Grace discussed.

Grace's Frankenstein Hollow Guide

Grace's Frankenstein Hollow Guide

Grace's Frankenstein Full Map and Route

Grace's Frankenstein HDD Map Contents
Map 1	Map 2

Hollow Deep Dive System Events and Guide

Step-By-Step Guide

1. Step on All the Yellow Tiles
2. Collect All the Data and Fight the Heavy Machine

Step on All the Yellow Tiles

In Map 1, you simply need to step on all the yellow tiles to charge up the old heavy machine base. You will also a get a Companion to help you get all the yellow tiles and defeat all the enemies that gets in your way.

You can track how many yellow tiles you need to collect by checking the white line beneath the heavy machine base. Every move you do, your companion copies, so always be cautious when making a move.

The yellow tiles can also expand the whole map when the white line beneath the machine reaaches a certain level.

Back to Full Map and Route

Collect All the Data and Fight the Heavy Machine

Upon collecting all the yellow tiles to charge up the heavy machine, collect all the Hollow Observation Data and head straight down towards the corrupted heavy machine.

Back to Full Map and Route

Contest Rival Commission Rewards

Grace's Frankenstein Quest Rewards

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

Contest Rival Schedule Rewards

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

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