The Gluttonous Eye is a rare auction-only item in Neverness to Everness that exists for one purpose: activating the Anomaly Furniture called Blind Mammon inside your apartment. Once installed, Mammon opens the Realm of Greed, a weekly boss fight that pays out a large lump of Fons and resets every week. Without the Eye, the furniture stays inert, and the Realm of Greed cannot be entered.
Quick answer: Win the Gluttonous Eye by outbidding NPCs at the Ebisu Auction House inside the Kape Grand Hotel, then place Blind Mammon in your first apartment to unlock the Realm of Greed weekly boss.
What the Gluttonous Eye does
The Gluttonous Eye is the activation key for the Blind Mammon Anomaly Furniture. You cannot place or use Mammon without it, and the Covetous Coin alone will not start the system. Once Mammon is active, you gain access to the Realm of Greed, a recurring weekly fight against Mammon that drops a fixed Fons reward scaled to the furniture's level.
At base level, defeating Mammon after buying both the Eye and the Coin returns roughly 45,000 Fons in the same week, which makes the bid pay for itself almost immediately. Upgraded furniture levels push the maximum reward higher, with level 5 Mammon paying around 48,000 Fons per clear.
Requirements before the Eye can appear
The Auction House is gated behind story progression, so the Eye is not reachable from a fresh save. You need to clear specific quests before the auction rotation can even include it.
| Requirement | Detail |
|---|---|
| Story progress | Complete Chapter 3 of the Main Story |
| Unlock quest | Finish the "Deal? Deal!" story quest |
| Follow-up quest | "This Trip Has Only One Purpose" leads you in |
| Location | Kape Grand Hotel, Herland District |
| NPC contact | Iris (teleports you into the auction room) |
| Currency | Fons (used for bidding) |
How to get the Gluttonous Eye
Step 1: Finish the "Deal? Deal!" story quest in full. Skipping objectives blocks the next quest from triggering, and the auction stays locked until the entire chain closes out.
Step 2: Accept "This Trip Has Only One Purpose" once it appears in your log. Follow the marker into the Herland District toward the Kape Grand Hotel.
Step 3: Enter the Kape Grand Hotel and find Iris. Speak to her once to be teleported into the auction room, then speak to her a second time to actually join the auction session.
Step 4: Open the auction item list and check the current rotation. The pool refreshes weekly, and you can also trigger a manual refresh if the Gluttonous Eye is not listed in the current set.
Step 5: Place a bid on the Gluttonous Eye. NPC bidders will counter, pushing the price up. Either keep raising your bid above theirs or commit a high opening bid to shut out competition.
Step 6: Win the auction by holding the highest bid when it closes. The Eye is then added to your inventory, after which the Covetous Coin should be your next target if it appears in the same rotation.
Activating Mammon after winning the Eye
Owning the Gluttonous Eye does not finish the unlock on its own. The item has to be installed as part of the Blind Mammon Anomaly Furniture inside your first apartment, and the system needs an NPC confirmation to switch on.
Step 1: Return to your first apartment and open the Anomaly Furniture menu. Place Blind Mammon using the Gluttonous Eye as the activation component.
Step 2: Add the Covetous Coin to upgrade Mammon's reward tier. Higher levels increase the maximum Fons payout from the Realm of Greed clear.
Step 3: Speak with the NPC Hikatai to finalize the unlock. After this conversation, the Realm of Greed entry option becomes active on the furniture.
Step 4: Interact with Mammon and select Enter Realm of Greed. Defeat Mammon inside the instance to claim the weekly Fons reward shown on the furniture's "max reward" line.
How to confirm the unlock worked
The cleanest signal is the Mammon furniture itself. After installing the Gluttonous Eye and confirming with Hikatai, the furniture entry shifts from a locked state to showing the Realm of Greed effect with a numeric max reward value. Selecting Enter Realm of Greed should load the boss instance instead of returning a missing-requirement prompt.
If the option still does not appear, the most common reasons are that the Covetous Coin step or the Hikatai conversation has not been completed, or that Chapter 3 of the Main Story is not yet cleared.
Weekly reset and reward cadence
| System | Behavior |
|---|---|
| Auction item pool | Refreshes weekly; manual refresh available |
| Realm of Greed clear | Once per weekly reset |
| Reward scaling | Tied to Blind Mammon furniture level |
| Level 5 max reward | ~48,000 Fons per clear |
| Initial payback | ~45,000 Fons after first clear |
Treat the Gluttonous Eye as a one-time purchase that pays for itself within a single weekly cycle, then keep an eye on the auction rotation for the Covetous Coin to push Mammon's payout higher each week. The Eye is the gate; the Coin is the multiplier; Hikatai and the apartment furniture menu are what turn both items into a recurring Fons source.