Neverness to Everness · Platforming Anomaly · Unheard Shores

C's Cube — Proliferative C

The Unheard Shores counterpart to C's Tower. Proximity-spawn box maze north of Wertheimer Tower — navigate the labyrinth and seal the open, possessed box to nullify the anomaly. Sealing has a high chance of provoking Proliferative C; the Chaos weakness lines up cleanly with Daffodill.

Overview

Commission name	C's Cube
Boss	Proliferative C
Region	Unheard Shores — north of Wertheimer Tower, near Orichalcos Imaginist and Serenetti Manor
Difficulty	★★★☆☆ Level III
Weakness	Chaos
Type	Proximity-spawn box labyrinth → seal the open box
Anomaly	Proliferative C inhabits the maze of boxes
Arc reward	None

TL;DR — 5 Steps

Travel north of Wertheimer TowerUnheard Shores. The anomaly seal is between Orichalcos Imaginist and Serenetti Manor — visible landmarks for orientation.
Walk into the proximity zoneBoxes only materialise when you're close. You can't plan the maze from a distance — commit and let it build around you.
Navigate the labyrinth of boxesTake your time on transitions between box clusters. Falling is a soft fail but wastes minutes.
Find the open boxSomewhere in the maze sits the unsealed, possessed box. That open box is what holds the anomaly active — track it down.
Seal the open boxSealing it nullifies the anomaly. Sealing has a high chance of provoking Proliferative C into actively attacking you — be ready for it; bring Chaos damage (Daffodill is the cleanest fit).

How to Trigger

Travel to Unheard Shores and head north of Wertheimer Tower.
Identify the cluster of buildings near Orichalcos Imaginist and Serenetti Manor — the anomaly seal sits in the open ground between them.
Approach the seal. As soon as you cross the proximity threshold, the labyrinth of glowing boxes spawns around you.
Work through the maze — only nearby boxes render, so the path reveals itself as you move.
Locate the open / unsealed box (the possessed one) and seal it to nullify the anomaly. Sealing has a high chance of provoking Proliferative C into actively attacking you.

Boss: Proliferative C

The same anomaly entity that inhabits the maze in C's Tower. Proliferative C lives inside the labyrinth of boxes; the objective is to navigate the maze and seal the open / unsealed (possessed) box, which nullifies the anomaly. Sealing the box has a high chance of provoking Proliferative C into actively attacking you — other than that, it poses no danger. The elemental weakness is officially Chaos here, so a Chaos profile keeps the optional fight short.

Sealing the open box

Objective

Tell: You reach the unsealed, possessed box inside the maze.

Sealing it nullifies the anomaly and completes the commission. Sealing has a high chance of provoking Proliferative C into actively attacking you — be ready to fight the moment you seal.

Provoked attack (on seal)

Dodge

Tell: Triggered when you seal the box — Proliferative C turns and engages.

This is the only danger in the encounter. Bring Chaos damage to end it quickly; if it doesn't aggro, no fight is required at all.

Recommended Team

Chaos team — Daffodill main

DaffodillMain DPS · Chaos
LacrimosaSub-DPS · Chaos
BaicangSub-DPS · Incantation
HanielSupport · Psyche

Same comp recommended for Book of Post-Adolescence — Chaos weakness coverage with Daffodill carrying the damage. If you already farmed Youthful Fantasy, slot it here to end the provoked fight faster.

Rewards

Hunter EXP	200
Annulith	30
Fons	10,000
Silver Carrota	40
U-00NE	20
Beetle Coin	5,000
Anomaly Material Selection Box I	4

Pro Tips & Common Pitfalls

The proximity-spawn boxes mean you cannot scout the maze from afar. Don't waste time circling — work through the boxes and adapt as they appear.
Sealing the open box has a high chance of provoking Proliferative C. Don't seal until your team is ready to fight — but if it doesn't aggro, no combat is required at all.
Daffodill's Support Skill cadence powers Youthful Fantasy's chain mechanic if you've already farmed it. If not, any Chaos main works — the weakness multiplier is the bigger factor than the Arc.
Outside of the optional provoked attack, the anomaly poses no danger — the labyrinth navigation and finding the unsealed box are the real challenge.
Track the open / possessed box as you move; the maze only renders nearby boxes, so keep a mental map of where you've already been.

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