Zenless Zone Zero's Version 2.4 Lightstream Notes event (running December 3-29, 2025) brings four daily commissions featuring Ye Shunguang—and honestly, it's one of the better-designed hangout events we've seen. You're looking at 300 Polychrome, 12 upgrade materials, and 120,000 Denny just for spending time with the Void Hunter agent before her Version 2.5 debut. This guide breaks down the optimal routes for each commission, from arranging flowers in Lumina Square to that surprisingly emotional lighthouse photography session at Port Elpis.
Understanding ZZZ Lightstream Notes and Ye Shunguang Commission System
Lightstream Notes takes the hangout-style commission format and actually makes it worthwhile. The event centers on Ye Shunguang—the Void Hunter agent who'll be joining the roster in Version 2.5—and requires Inter-Knot Level 15 plus completion of Mole in the Hole (I) before the December 3, 2025, 10:00 server time kickoff.
Here's how it works: you'll visit Suibian Temple daily to start four themed explorations across New Eridu. Each one unlocks diary entries (which you actually need to read for rewards—more on that common mistake later) while distributing some genuinely substantial rewards.
The commission structure runs on a fixed four-day schedule from December 3-6, 2025: Flavors Down the Mountain at Lumina Square, Streets Down the Mountain on Sixth Street, Scenes Down the Mountain at Gravity Cinema, and Parting and Reuniting at Port Elpis. Each stage delivers 70 Polychrome, 6 upgrade materials, 30,000 Denny, and 100 Inter-Knot Credits—that's 75-100% higher efficiency than your standard dailies.
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Commission Mechanics Overview
Each commission kicks off at Suibian Temple, then sends you across different New Eridu districts for location-based interactions. What's nice is that completion automatically adds diary entries—but here's the catch that trips up new players: you must manually return and read those entries to actually claim your rewards.
The 26-day event duration means late starters can still complete everything before the December 29, 2025, 03:59 deadline. But starting on day one maximizes that sweet 1,600 City Fund EXP—which, critically, sits outside the standard weekly 10,000 EXP limit.
Ye Shunguang Reward Structure
Let's talk total haul: 300 Polychrome (1.875 pulls), 5 Boopon, 12 Senior Investigator Logs, 12 W-Engine Energy Modules, 120,000 Denny, 400 Inter-Knot Credits, and 1,600 EXP. The Logs and Modules alternate across days—Days 1 and 3 give Logs, Days 2 and 4 give Modules—which creates a nice balanced progression for both agent skills and weapon enhancement.
That 30,000 Denny per day? It actually surpasses typical farming routes, making this the highest-value time investment during Version 2.4's opening week.
Day 1: Flavors Down the Mountain - Lumina Square Flower Route
December 3's commission centers on flower arrangement at Dew Gardening. It's straightforward, but there's a specific combination that looks best (even though it won't affect your rewards).
Optimal Route Steps:
Chat with Ye Shunguang at Suibian Temple
Meet her outside the Lumina Square station entrance
Head to Dew Gardening (your minimap will mark it)
Select the Wooden Pot as your base
Choose Red Memorial Flower—Dense variant specifically
Add Yellow Snapdragon—again, Dense variant
Present your arrangement to Ye Shunguang
Return to Suibian Temple and actually read that diary entry
The Dense flower variants create the intended visual composition. Can you pick other flowers? Sure. Will it block progression? Nope. But experienced players know the Dense variants are what the designers had in mind for the scene's aesthetic.
Completion time runs 6-8 minutes if you know where you're going.
Day 1 Rewards: 70 Polychrome, 6 Senior Investigator Logs, 30,000 Denny, 100 Inter-Knot Credits, 400 City Fund EXP.
Day 2: Streets Down the Mountain - Sixth Street Treasure Hunt
December 4 brings a scratch card treasure hunt with smiley stool photography on Sixth Street. This one's a bit trickier because of the second-floor location that new players consistently miss.
Treasure Hunt Process:
Meet Ye Shunguang near the Box Galaxy entrance
Interact with Howl's newsstand to grab scratch cards
Get Smiley Stool Clue I—it's at Enzo's Remodeling Shop, second floor
Climb those stairs (seriously, don't skip this) and photograph the upper area stool
Retrieve Smiley Stool Clue II in the alley end across from Enzo's
Photograph the second stool tucked in that dead-end alley corner
Return to Howl's for your prize
Back to Suibian Temple for diary reading
Both photographs need clear registration—you might need to adjust camera angles in shadowed corners. And that second-floor access at Enzo's? It's where most people get stuck their first time through.
Day 2 Rewards: 70 Polychrome, 6 W-Engine Energy Modules, 30,000 Denny, 100 Inter-Knot Credits, 400 City Fund EXP.
Day 3: Scenes Down the Mountain - Gravity Cinema Optimal Responses
December 5 takes you to Gravity Cinema for a Stray Paws screening with four dialogue choices. These build toward the Gravity Soulmates narrative rank—which doesn't affect rewards but does create a more emotionally resonant experience.
Cinema Interaction Sequence:
Meet Ye Shunguang at the Gravity Cinema entrance
Start the Stray Paws screening
First Choice - You nervous?: Go with (Gently rest your hand on hers.)
Second Choice - During the scared scene: Pick Don't worry. Someone's coming to save it. or You can close your eyes if you're scared.
Third Choice - Will...they ever find each other again...?: Select (Reach out and hold her hand.)
Fourth Choice - The reunion question: Choose They'll meet again.
Watch credits to completion—and don't skip, or the diary won't unlock
Return to Suibian Temple for diary reading
Those hand-holding choices (options 1 and 3) are what trigger Gravity Soulmates status. It's purely narrative, but it's the intended emotional arc.
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Day 3 Rewards: 70 Polychrome, 6 Senior Investigator Logs, 30,000 Denny, 100 Inter-Knot Credits, 400 City Fund EXP.
Day 4: Parting and Reuniting - Port Elpis Farewell Route
December 6's commission features a multi-location Port Elpis tour with lighthouse photography. It cleverly incorporates the Stray Paws soundtrack from Day 3—nice narrative continuity there.
Port Elpis Tour Steps:
Grab the Stray Paws soundtrack from Elfy
Meet Ye Shunguang at the Port Elpis docks near Bridge Fishing Spot
Walk to Coastal Fishing Spot for some dialogue
Visit the Fries Stand at Port Promenade
Navigate to the lighthouse area
Present that soundtrack record
Photograph her at the lighthouse (any clear shot works—sunset angle looks great but isn't required)
Return to Suibian Temple for the final diary entry
This is the longest route at 8-10 minutes. Take your time with the lighthouse photo—it's a nice moment.
Day 4 Rewards: 70 Polychrome, 6 W-Engine Energy Modules, 30,000 Denny, 100 Inter-Knot Credits, 400 City Fund EXP, 1 Boopon.
Commission Efficiency and Reward Optimization
Completing all four commissions during December 3-6 frontloads your rewards right when Version 2.4 launches. That 1,600 City Fund EXP operates outside weekly limits, so it stacks with your regular Battle Pass progression for genuinely accelerated advancement.
Resource Allocation Strategy:
12 Senior Investigator Logs: Perfect for A-rank agent skill upgrades (you'll need 6 per level at higher tiers)
12 W-Engine Energy Modules: Weapon enhancement for DPS optimization
300 Polychrome: Reserve this for Ye Shunguang's banner in Version 2.5 (expected mid-December 2025)
120,000 Denny: Material synthesis at crafting stations
5 Boopon: Bangboo upgrades for Void Hunter support compositions
Advanced Route Customization and Time Management
In practice, pre-purchasing flower materials for Day 1, memorizing stool locations for Day 2, and reviewing cinema dialogue for Day 3 can cut completion time from 10-12 minutes down to 6-8 minutes per stage.
Daily Schedule Integration:
Complete commissions right after daily reset (10:00 server time)
Batch them with New Eridu exploration objectives for movement efficiency
Prioritize Lightstream Notes over standard commissions during December 3-6 (70 versus 20-40 Polychrome makes this a no-brainer)
Common Mistakes and Troubleshooting
Critical Errors to Avoid:
Skipping Diary Reads: This is the number one mistake. Rewards require manual diary interaction at Suibian Temple after each commission. The game doesn't auto-claim these.
Wrong Flower Density: Standard variants create visual mismatches but won't penalize your rewards. Still, why not get it right?
Incomplete Photo Capture: Day 2's stools need clear framing. If the game isn't registering your shot, adjust your angle—especially in shadowed areas.
Cinema Credit Skip: Exiting before credits finish prevents the Day 3 diary unlock. You'll have to restart the whole commission.
Missed Elfy Interaction: Day 4 requires grabbing that soundtrack before the Port Elpis meeting. Don't skip this step.
The good news? Restarting commissions from Suibian Temple resets progress without penalty.
Long-Term Progression and Version 2.5 Preparation
Lightstream Notes introduces Ye Shunguang's backstory before her anticipated Version 2.5 banner release. The 300 Polychrome contributes toward pity accumulation, while those upgrade materials enable immediate post-acquisition development—you can start building her the moment you pull.
Based on Version 2.4's structure, future updates will likely feature similar hangout-style commissions for new agents. It's a format that works.
FAQ
What are the prerequisites for starting Lightstream Notes commissions? You'll need Inter-Knot Level 15 and completion of Mole in the Hole (I) before December 3, 2025, 10:00 server time. Pretty standard requirements.
Can I complete all four commissions in one day if I start late? Absolutely. The event runs until December 29, 2025, 03:59, so you can knock them out consecutively after December 6 with identical rewards. No penalty for late starts.
Do dialogue choices in Gravity Cinema affect rewards? Nope. The optimal Day 3 responses only influence the Gravity Soulmates narrative rank—all paths yield the same 70 Polychrome, 6 Senior Investigator Logs, 30,000 Denny, and 100 Inter-Knot Credits.
What happens if I select the wrong flowers on Day 1? Any combination works mechanically. Dense variants (Red Memorial Flower Dense, Yellow Snapdragon Dense) produce the intended visuals, but wrong selections won't block progression or reduce rewards.
How does the 1,600 City Fund EXP interact with weekly limits? It's exempt from the standard 10,000 weekly Battle Pass EXP cap, making it stackable with daily commissions and weekly objectives. This is genuinely valuable for accelerated leveling.
Should I save Polychrome from this event for Ye Shunguang's banner? The 300 Polychrome (1.875 pulls) should definitely be reserved alongside your other saved currency for optimal pity progression when her Version 2.5 banner arrives. Every pull counts toward that guarantee.