TL;DR
- There are over 10 free S-Class Arcs available in NTE without spending real money.
- Most are earned through Anomaly Commissions — one per commission, 100% guaranteed on completion.
- Others come from the login event, City Tycoon progression, wanted level gameplay, Nacupeda’s Pool, Anomaly Pilgrimage, and a hidden multi-day quest.
- Every standard S-Rank Arc in the game can be obtained once for free — you never have to pull on the Arc banner to gear your team.
- Some S-Rank Arcs from Anomaly Commissions can also be purchased as duplicates using Tri-Keys from the Mall’s Arc Shop.
Why Free S-Class Arcs Matter in NTE
Arcs are the weapon system in Neverness to Everness. Every character equips one Arc disk that boosts their ATK, provides a key substat, and activates a unique passive effect in combat. The gap between a strong Arc and a weak one is significant — your Arc choice can impact your damage output as much as the character’s own level.
S-Class Arcs are the highest rarity. Normally you pull for them on the Arc gacha banner using Tri-Keys. But NTE is unusually generous: every standard S-Rank Arc in the game can be obtained once for free through in-game activities. You can fully gear your entire team without spending a single Tri-Key on weapon pulls.
This guide covers every source of free S-Class Arcs, what you need to do, and which Arc each method gives you. To see how each Arc ranks in the current meta, check our Arc weapon tier list for NTE.
Free S-Class Arcs From Anomaly Commissions
Anomaly Commissions are the richest source of free S-Rank Arcs. Each commission listed below guarantees its Arc as a one-time reward when you complete and contain the Anomaly. There is no drop chance involved — finish the commission, get the Arc.
To track any commission, open your World Map, click the Anomaly Commission button in the bottom-right corner, find the commission in the list, and select Track Anomaly. All commissions unlock after you clear the Main Story Prologue – Part 2.
For a broader look at how Anomaly Commissions work, see our Anomaly Zones guide.
Raging Flames – Flaming Bike Ride Assault (Bridge Crossings)
Arc type: Plasma | Substat: Crit DMG
Complete the Flaming Bike Ride Assault Anomaly Commission in Bridge Crossings. The boss here is the Headless Rider. Defeat it and contain the Anomaly to claim Raging Flames. This is one of the most in-demand free S-Rank Arcs in the game because of its strong Crit DMG scaling. It is worth prioritizing early.
Full walkthrough: Flaming Bike Ride Assault Anomaly Commission Guide.
Blow Up the Crowd – Rhythm Master (Illusion Town)
Arc type: Solid | Substat: ATK%
Complete the Rhythm Master Anomaly Commission in Illusion Town. The boss is the Beat King, located near the Security Office on Crane Path. Defeat it to earn Blow Up the Crowd — one of the strongest free Solid Arcs available. It also appears in the Arc weapon banner, so you can get refinement copies over time.
Full walkthrough: Rhythm Master Anomaly Commission Guide.
Song of the Whale – Deep Blue Sorrow (New Herland District)
Arc type: Plasma | Substat: ATK%
Complete the Deep Blue Sorrow Anomaly Commission in the New Herland District. To trigger the Anomalous Realm, drive a 4-wheeled car in reverse into Nautili Tunnel — a motorcycle will not work. Defeat the massive whale boss at the end to earn Song of the Whale.
Full walkthrough: Deep Blue Sorrow Commission Guide.
Tears Beneath the Mask – Call of the Lost (New Herland District)
Arc type: Gas | Substat: ATK%
Complete the Call of the Lost Anomaly Commission in New Herland. The quest marker starts on a rooftop just south of Oia Avenue. Defeat the Nestbound Bird boss at the end to earn Tears Beneath the Mask.
Full walkthrough: Call of the Lost Commission Guide.
Youthful Fantasy – The Book of Post-Adolescence (New Herland District)
Arc type: Liquid | Substat: ATK%
Complete the Book of Post-Adolescence Anomaly Commission in New Herland. The starting point is on a rooftop southwest of the Wertheimer Tower in the district. Defeat the Black Tome boss at the end to earn Youthful Fantasy — the best free Liquid Arc in the game and highly recommended for Liquid-type characters like Jiuyuan and Daffodil.
Full walkthrough: Book of Post-Adolescence Commission Guide.
Reality Refuge – Let’s Go See a Movie (Commission)
Arc type: Solid | Substat: ATK%
Complete the Let’s Go See a Movie Anomaly Commission. At the end of the commission, defeat the Swallowtail boss. When it is defeated, it will drop an item on the ground — walk close to it to contain the Anomaly and claim Reality Refuge.
Full walkthrough: Let’s Go See a Movie Commission Guide.
Free S-Class Arcs From Anomaly Pilgrimage
Anomaly Pilgrimage is a separate repeatable challenge system, distinct from standard Anomaly Commissions. Open the Exploration Guide from your in-game phone, head to the third tab, and switch to the Anomaly Pilgrimage page. Here you can select specific boss challenges using Character Pixels. Two of these challenges reward an S-Rank Arc on your first completion.
Eternal Waltz – The Never-ending Arachne
Arc type: Synthesis | Substat: HP%
Select the “The Never-ending Arachne” challenge in the Anomaly Pilgrimage menu. Complete it once to earn Eternal Waltz. This Arc provides a significant Max HP boost along with a Mental DMG increase after each Ultimate cast, making it a strong option for tankier Synthesis characters who scale with Mental damage.
Good Boy’s Grand Adventure – Morphix
Arc type: Gas | Substat: ATK%
Select the “Morphix” challenge in the Anomaly Pilgrimage menu. You must first complete the Pawn Moonlight spinoff quest before this challenge unlocks. Complete Morphix once through the Anomaly Pilgrimage to earn Good Boy’s Grand Adventure. This is one of the stronger free Gas Arcs and is recommended for Gas-type DPS builds.
Free S-Class Arcs From Other Gameplay
Several S-Rank Arcs come from sources outside of Anomaly Commissions entirely. These require specific in-game activities or longer-term progression.
Camellia Society – Serenetti Manor World Boss
Arc type: Synthesis | Substat: Crit Rate
Travel to Serenetti Manor and defeat the world boss there — a giant tree-like enemy named Serenetti. This is a world boss fight rather than an Anomaly Commission, so it can be attempted at any time once you reach the manor. Camellia Society stacks Crit DMG every time your HP drops without taking a direct hit — a strong passive for characters who can manage their HP well in combat.
Hethereau’s Keeper – Justice Executioner (Wanted Level Boss)
Arc type: Solid | Substat: ATK%
This Arc is earned by raising your Wanted Level to 4 stars — the maximum — by committing illegal acts in the city such as attacking NPCs, stealing or ramming vehicles, or destroying public property. When your Wanted Level hits 4 stars, the Justice Executioner (Level 99) spawns as a boss fight.
The Justice Executioner is one of the hardest enemies in the game. It is a Level 99 enemy regardless of your current progress, so it is recommended to wait until your team is well-built before attempting this. Prioritize dodging over attacking — it deals heavy burst damage and you will be eliminated quickly if you play aggressively. Carry healing items and attack only during safe windows after its major moves finish.
After defeating the boss, head to the nearest Security Office and speak with the officer there to claim the Hethereau’s Keeper Arc. The Arc’s passive increases ATK by 15% and damage dealt to bosses by 15%, and it also summons a police cat companion called Officer Whisker that continuously attacks enemies during combat.
For more on how the Wanted system works and how to manage or escape it, see our guide on how to lower your Wanted Level in NTE.
Day Off – Eclipse Hidden Quest (Bureau of Anomaly Control)
Arc type: Solid
Day Off is the main character’s signature Arc in NTE and is obtained through a hidden multi-day chain quest involving an Anomaly named Eclipse. You must find and speak with Eclipse at six different locations across Hethereau. The quest begins at the Bureau of Anomaly Control. Eclipse does not appear on the map and the locations are not marked, so you need to search each spot manually.
The locations span across multiple districts and some require specific weather conditions — set in-game time to the next day at 8 AM with Sunny weather to ensure Eclipse spawns. After visiting all six locations and speaking with Eclipse each time, return to the Bureau of Anomaly Control for the final interaction to claim Day Off. This is one of the most involved free S-Rank Arcs in the game but is absolutely worth the effort for any Solid-type main character build.
For a full step-by-step breakdown, check our dedicated guide on how to get the Day Off Arc in NTE.
Contemplative Cat – City Tycoon Level 21
Arc type: Gas | Substat: Crit DMG
Raise your City Tycoon Level to 21 to automatically receive Contemplative Cat as a milestone reward. Additional copies are earned as you continue leveling the Tycoon system beyond Level 21, giving you a way to refine this Arc without spending resources elsewhere. Progressing City Tycoon requires buying properties, managing businesses, and spending Fons on development across Hethereau.
For help leveling up your Tycoon progress efficiently, see our NTE City Tycoon guide.
Free S-Class Arcs From Events and Other Sources
Stellar Veil – 14-Day Login Event
Arc type: Plasma | Substat: ATK%
Stellar Veil is available as a reward from the 14-day login event. Log in on Day 10 of the event window to claim it for free. This is one of the simplest free S-Rank Arcs to get — just log in consistently during the event period and it is yours automatically.
Your Happiness is Priceless – Nacupeda’s Pool (Mhm! Coins)
Arc type: Solid | Substat: DEF%
Purchase this Arc from the Mall by exchanging 100 Mhm! Coins. Mhm! Coins are earned by visiting Nacupeda’s Pool and selecting “Make a Sincere Wish” once per day. Nacupeda’s Pool is located near Davidia Avenue in the southwest of Illusion Town. It takes 100 days of daily wishes to accumulate enough coins, so start this as early as possible to avoid a long wait.
Getting Duplicate Copies for Refinement
Once you have a free S-Rank Arc, you may want duplicates to increase its Mixing level (refinement). This strengthens the Arc’s passive effect significantly. Five of the Anomaly Commission Arcs — Blow Up the Crowd, Day Off, Tears Beneath the Mask, Eternal Waltz, and Song of the Whale — can be purchased as duplicate copies from the Mall.
Go to Mall → Arc Shop → Arc Selection and spend 25 Tri-Keys per copy. You can buy up to four additional copies this way, and one more copy is available for purchase every month. You can also earn copies from the Arc weapon banner through normal pulls.
To learn how to upgrade your Arcs once you have them, see our Awakening System guide for NTE and our guide on how to get Cartridges and Modules in NTE.
Which Free S-Class Arc Should You Get First?
If you are unsure where to start, here is a simple priority order based on how strong the Arcs are and how quickly you can get them:
- Raging Flames – Get this first. Strong Crit DMG substat and immediately useful for most Plasma DPS builds.
- Day Off – A must-have for the main character. Start the Eclipse chain quest as early as possible.
- Youthful Fantasy – Best free Liquid Arc. Prioritize if you are running Jiuyuan or Daffodil.
- Blow Up the Crowd – Excellent for Solid DPS. Very consistent passive with no complex activation conditions.
- Good Boy’s Grand Adventure – Strong for Gas builds. Do the Pawn Moonlight quest early to unlock Morphix.
- Contemplative Cat – Long-term Tycoon goal but very rewarding once reached.
- Stellar Veil – Log in daily during the event and this handles itself.
- Your Happiness is Priceless – A long grind through Nacupeda’s Pool but worth starting immediately.
For a full ranking of every Arc in the game, both free and gacha, see our NTE Arc weapon tier list.
More Guides to Help You Gear Up in NTE
Getting your Arcs sorted is just one part of team building. Here are more guides to help you build the strongest possible roster:
- Best Team Compositions in NTE
- NTE Character Tier List
- Esper Cycle Reaction Guide
- How to Get Annulith Fast
- How to Get Fons Fast in NTE
- How to Increase Hunter Level Fast
- Scarborough Fair Gacha System Explained
- This Is Not A Painting Anomaly Commission Guide
- Latest NTE Redeem Codes
Download Neverness to Everness on Android via Google Play or on PlayStation and start collecting your free S-Class Arcs today.
