Zenless Zone Zero 2.5 Buyan Store Guide: How to Unlock Rewards, Raise Mystery Rank & Farm Polychromes
Exploration in Zenless Zone Zero Version 2.5 – To Be Fuel for the Night isn’t just about clearing enemies or pushing the main story forward anymore. Hidden among the neon alleys of Failume Heights is a brand-new permanent system that quietly rewards curiosity, patience, and thorough Hollow diving: the Buyan Antique Store.
At first glance, it may seem like a simple vendor—but the Buyan Store is actually one of Version 2.5’s most rewarding long-term features. It transforms forgotten relics, dusty coins, and environmental storytelling into Mystery Rank progression, Denny, achievements, and a sizeable chunk of Polychromes. If you enjoy uncovering lore, completing collections, and squeezing extra value out of exploration, this system is made for you.
This complete guide breaks down how to unlock the Buyan Store, how its daily management loop works, the best ways to farm Mystery Points, and how to efficiently claim every reward it offers.
πΊ️ How to Find and Unlock the Buyan Store
Getting started with the Buyan Antique Store is straightforward. As part of the “To Be Fuel for the Night” update, the store was released on December 30, 2025.
Location:
You can find the store in the northwest section of Failume Heights, directly across from the familiar Good Goods shop.
Unlock Requirement:
The store becomes accessible during the second part of the new main story commission, “First Signs.” Shortly after returning to Failume Heights in the story, you will naturally encounter and unlock it.
Once unlocked, you can interact with Ginger, the shopkeeper, to begin your work as a relic hunter.
π How the Buyan Store System Works: Your Daily Management Loop
The Buyan Store operates on a simple but engaging daily loop. It's designed as a sandbox collection mode, similar to the Suibian Temple from Version 2.0, where you turn exploration finds into tangible rewards.
The Core Gameplay Cycle
Explore and Collect:
As you investigate the new Lemnian Hollow areas added in Version 2.5 (like the Old Port Factory, Porcelume Processing Base, and Lumite Mine), you will find relics and artifacts. Be sure to interact with these items to “extract their stories.”
Return to Ginger:
Take your collected relics back to Ginger at the Buyan Store. Handing them over allows her to log them in the store's Mystery Database and earns you Mystery Points.
Follow Leads:
Ginger will also occasionally provide you with specific leads from miners about rumored relics. These leads turn into side missions that guide you to special collectibles.
Increase Your Rank:
The Mystery Points you earn from turning in collectibles and completing side missions increase your Mystery Rank. As your rank levels up, you unlock permanent and increasingly valuable rewards.
π Key Activities for Earning Mystery Points
To efficiently raise your Mystery Rank, focus on these three activities:
| Activity | What to Do | Where to Find Items |
|---|---|---|
| Collecting Relics | Pick up all interactable collectibles in new Hollow zones. | Old Port Factory, Porcelume Processing Base, Lumite Mine |
| Hunting Dusty Old Coins | Find and collect special coins hidden in the environment. | Mini Cargo Trucks, Scattered Supplies, Treasure Hunt Bangboos, Miasmic Fields |
| Completing Side Missions | Finish narrative-driven missions provided by Ginger. | Unlocked after completing “To Be Fuel for the Night” |
π Buyan Store Rewards: What You Can Earn
The true payoff for your efforts comes from ranking up and completing collections. The rewards are a mix of valuable currencies and completion-based achievements.
Mystery Rank Rewards
By earning Mystery Points, you level up your Mystery Rank from 1 to 15. Each level grants rewards, with major milestones providing large sums of Denny.
A key long-term incentive:
Fully engaging with the Buyan Store system can earn you up to 1,200 Polychromes over time.
Collection and Mission Rewards
| Goal | Reward |
|---|---|
| Collect all Dusty Old Coins (86 total) | Mystery Point milestones (e.g., 1,000 points per 10 coins) |
| Complete all Mystery Database entries | One-time reward of 9,700 Mystery Points |
| Complete all side missions | Varies per mission; contributes to rank progression |
| Obtain all store collectibles | Unlocks the “House Full of Heirlooms” achievement |
π Pro Tips for Efficient Buyan Store Management
-
Make It a Daily Habit:
Check in with Ginger after Hollow runs—treat it like your Suibian Temple routine. -
Use Exploration Abilities:
Use Revelation Technique – Retrace to cleanse corrupted objects and Bladeflash Mirage (with Ye Shunguang) to reach hidden platforms. -
Track Progress Easily:
Use Compendium → Primer → Mystery Exploration to monitor coins, missions, and database completion. -
Prioritize Dusty Old Coins:
These are the most reliable source of repeatable Mystery Points. Always check Mini Cargo Trucks and Miasmic Fields.
π― Final Thoughts
The Buyan Antique Store is one of Zenless Zone Zero 2.5’s most underrated additions. It rewards players who explore thoroughly, engage with the world’s lore, and invest time beyond combat. Between Polychromes, Denny, achievements, and narrative depth, it’s a system well worth integrating into your daily routine.
Ready to become Failume Heights’ premier relic hunter?
Share your rarest or strangest Buyan Store discovery in the comments below π
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