Eternal Waltz is one of the best free S-Rank Synthesis Arcs in Neverness to Everness (NTE). It offers excellent HP scaling and mental damage boosts after using ultimates, making it ideal for sustain-focused teams and Fadia mains.
This guide covers everything you need: exact location, story prerequisites, how to reach the boss, combat strategies, rewards, upgrades, and best characters. Whether you’re a new player or pushing the endgame, this free S-tier arc is a must-have.
What Is Eternal Waltz Arc in NTE?
Eternal Waltz is an S-Rank Synthesis Arc with these key stats:
- Rarity: S-Rank
- Type: Synthesis
- Base ATK (Max): 424
- Substat (Max): HP +41.2%
- Effect: Increases Max HP by 20–32%. Increases mental DMG dealt by 10–18% for 10 seconds after casting an ultimate.
It excels in prolonged fights, providing tankiness and damage amplification. Many players consider it Fadia’s signature weapon due to perfect synergy with her kit.
Eternal Waltz Location: Ebisu Auction House, New Herland District
You obtain Eternal Waltz by defeating the Never-Ending Arachne at the Ebisu Auction House in the New Herland District.
This area unlocks during the main story. It becomes a repeatable anomaly pilgrimage challenge for weekly farming.
Story Prerequisites
Progress through the main questline up to “Deal? Deal!” (unlocked after “Love that Begins with Lies”). Complete this episode to access the Ebisu Auction House sequence, including elevator descents and spatial puzzles.
Step-by-Step: How to Reach The Never-Ending Arachne
- Start the Quest — Head to Old Town. The “Deal? Deal!” quest should appear in your log.
- Enter the Elevator—Interact with the elevator and descend to B2 Ebisu Auction Hall.
- Navigate Corridors — Sprint through shifting corridors, dodge falling obstacles, and enter side doors as they open (patterns may alternate on repeats).
- Cross the Bridge — After the cityscape view, take the left door and proceed through distorted spaces.
- Activate the Lamp—Interact with the lamp to stabilize the environment and trigger dialogues.
- Challenge the Boss—Approach the group to enter the arena against The Never-Ending Arachne.
Pro Tip: Use the Exploration Guide → Anomaly Pilgrimage tab for quick access after unlocking.
How to Defeat The Never-Ending Arachne Boss (Strategy Guide)
This weekly boss features high HP, teleports, AoE attacks, flower shockwaves, and a dangerous full-room laser in later phases.
Recommended Team
- DPS/Break: Daffodil (for Chaos weakness)
- Supports: Sakiri, Haniel, or Fadia (Psyche/Incantation for Discord Cycle synergy)
- Focus on building break damage and cycling Ultimates.
Key Combat Tips
- Parry and Dodge — Perfect dodges for telegraphed AoEs; parry combo enders for vulnerability windows.
- Flowers & Shockwaves — Jump over planted flower shockwaves.
- Lasers — Slip through gaps in the full-room laser attack.
- Phase 2 — Stay in safe light zones to avoid freezing effects.
- Burst Damage — Chain Ultimates during break states for a quick clear.
First, it clearly guarantees the Eternal Waltz Arc. Subsequent weekly clears provide ascension materials.
Eternal Waltz Rewards
| Reward | First Clear | Weekly Repeat |
|---|---|---|
| Eternal Waltz Arc | Guaranteed S-Rank | Materials |
| Hunter EXP | 1000+ | Scaling |
| Annulith | 60 | Variable |
| Fons | 40k | – |
| Beetle Coin | 100k | Ascension mats |
| Expansion Core | 10 | – |
How to Upgrade Eternal Waltz
Ascend using materials from The Never-Ending Arachne and other farms:
- Beetle Coins
- Flavorless/Plain/Special Cold Desserts
- Fading/Blurred/Chaos Silhouettes
Full refinement makes it viable for late-game content.
Best Characters for Eternal Waltz
- Fadia (Signature synergy)—Boosts her sustain and mental output.
- Other mental/psyche tanks or supports that benefit from HP and post-ultimate damage amps.
It shines in teams needing durability for boss fights and anomaly clears.
Why Farm Eternal Waltz Early?
This free S-Rank Arc helps you skip early gacha RNG and accelerates progression for hunter level, tycoon systems, and tough anomalies. Farm it weekly for materials even after obtaining the weapon.
Ready to claim your free S-Tier power? Head into the Ebisu Auction House and take down The Never-Ending Arachne today!
Related Guides:
- All Free S-Rank Arcs in NTE
- Fadia Best Build Guide
- Neverness to Everness: Beginner Tips
Neverness to Everness (NTE) is developed by Hotta Studio. Guides based on version 1.0 content.
