NTE Arc Guide: All 47 Weapons, the 5 Compatibility Classes & How to Pick

If you just picked up something with a weird name and can't tell which system it belongs to, here's the short version: an Arc (弧盤) is a character's weapon in Neverness to Everness — the equivalent of the character-bound weapon systems found in other gacha games. It fills its own equipment slot, adds flat base ATK, and carries a unique passive that can change how a character plays.

• Arcs are completely separate from modules/Console gear, the 7x7 grid filled with tetromino-shaped pieces. They're scored differently and farmed differently — don't lump the two together when planning a build.
• Arc gacha is also its own separate system from character gacha: it spends Tri-Keys, not Riftcrystal/Dice. See how NTE's gacha actually works in this breakdown.
• The game has 47 Arcs in total: 26 S-rank, 16 A-rank, and 5 B-rank starters.

Some English-language community trackers count only 24 S-rank and 14 A-rank — that undercount is simply missing a few newer Arcs. This guide follows the in-game data: 26/16/5.

Here's the single most important rule before you pull or farm any Arc: a character can only equip an Arc from their own compatibility class, shown here as raw Type I, II, III, IV, V (5 classes total).

• Confirmed examples: Iroi runs Type II, Chiz runs Type IV, Zero runs Type I. Check a character's class before farming or pulling an Arc meant for them.
• One English-language fan site labels these 5 classes with different names — Gas, Liquid, Plasma, Solid, Synthesis. These are NOT official names: the game has never published a display label for these 5 classes in any language, and there's no confirmed mapping of which community name lines up with which Roman numeral. This guide shows the honest "Type I-V" instead of guessing at a nicer-sounding name.
• ⚠ Easy mix-up: the module/Console system also uses Roman numerals, Type I-VI, to name its equipment shapes — a completely unrelated label from a completely different system (see the module guide). Arc's Type II has nothing to do with the module's Type II.

Bottom line: before spending Tri-Keys on any pull, check the compatibility class of the character you're actually gearing — pulling the wrong class leaves that Arc dead weight for that unit.

Upgrading an Arc runs on two separate tracks, and mixing them up is an easy way to waste materials:

• Breakthrough (6 tiers): raises the Arc's level cap, exactly like a character's own breakthrough system — it doesn't make the passive stronger on its own, it just unlocks room to keep leveling.
• Star refinement (max 5): this is the track that actually scales the passive. It needs duplicate copies of the same Arc, or dedicated materials, to push higher.
• Passive values interpolate across star levels using a set of 188 different buff curves spanning all 47 Arcs — meaning every Arc scales on its own formula, not one universal "+X% per star" rule.

If materials are tight: breakthrough first to unlock the level cap, then pour stars into whichever Arc your main carry is actually holding — one fully-starred signature Arc beats several Arcs spread thin at star 1.

Every Arc carries three layers of stats: base ATK, one fixed substat, and a unique passive. The specific ATK and passive numbers below are sourced from a single community reference (neverness.gg) and not yet cross-verified against official data.

• Base ATK ranges from 316 to 666, depending on rarity and how far it's been broken through.
• Substat (one fixed line, one of 7 possible): Crit Rate, Crit DMG, ATK%, HP%, DEF%, Break Intensity, or Charge Efficiency.
• Passive is where the real difference lives. Camellia Society (S-rank, Type V) sits at the highest base ATK in the game, 666, with a passive that stacks Crit DMG up to 4 times as the target's HP drops. Fluff of Fortitude (512 ATK) instead adds a flat 22-38% damage bonus, jumping to 28-52% against enemies below 50% HP.

Because passives interpolate by star level, two copies of the same Arc name can sit worlds apart in actual output — don't compare Arcs by name alone, check the star count.

Listing every single one of the 47 Arcs is more than a single guide can cover, so the table below highlights the entries with numbers available from a community source (not yet officially confirmed) — see the full 47 on the item database or compare rankings on the tier list.

• Camellia Society — Rank: S · Class: Type V · Standout Detail: 666 ATK, highest in the game; stacks Crit DMG as target HP drops
• Fluff of Fortitude — Rank: S · Class: community label: Plasma · Standout Detail: 512 ATK; +22-38% dmg, up to 52% vs sub-50% HP enemies
• Ready-Ready — Rank: S · Class: Type III · Standout Detail: —
• The Last Rose — Rank: S · Class: Type II · Standout Detail: —
• Blushing Mirage — Rank: S · Class: Type V · Standout Detail: —
• Marching Beyond Time — Rank: S · Class: Type I · Standout Detail: —
• The Wrong Gate — Rank: S · Class: Type II · Standout Detail: —
• Us. — Rank: B · Class: starter · Standout Detail: free starting Arc
• First Step to Success — Rank: B · Class: starter · Standout Detail: free starting Arc
• Be Happy — Rank: B · Class: starter · Standout Detail: —
• Dangerous Game — Rank: B · Class: starter · Standout Detail: —
• "Real Music" — Rank: B · Class: starter · Standout Detail: —

Those five B-rank Arcs (Us., First Step to Success, Be Happy, Dangerous Game, and "Real Music") are the free starting kit everyone gets early — good enough to run until an A or S-rank Arc in the right class shows up.

Not every S-rank Arc requires a gacha pull. Some unlock straight from progression — Chiz's weapon, for instance, is granted at Tycoon Level 21 in the city-management system, at zero Tri-Key cost.

• New players should clear free progression milestones before considering spending on Arc Research pulls.
• Arc gacha uses its own currency (Tri-Keys) and has a hard pity that guarantees the featured S-rank Arc by pull 80.
• The 5 starting B-rank Arcs above are enough to get through the early game — running a B-rank in the right class beats sitting idle waiting for a pull.

A sensible early plan: clear out every free and A-rank Arc option first, and only spend Tri-Keys on an S-rank pull once your main carry — and their compatibility class — is locked in.

Picking the right Arc isn't just about grabbing the highest rank — it takes matching three things at once: the right compatibility class, the right role, and enough stars for the passive to matter.

• Main DPS: look for Crit Rate/Crit DMG or ATK% substats, and put stars into your main carry's signature Arc first.
• Support/buffer: Charge Efficiency substats keep skill rotations coming around faster.
• Break/CC role: target Arcs rolling Break Intensity.
• A character's signature Arc is always strongest on its matching unit, but any Arc in the right class still performs fine if the signature isn't owned yet.

Verdict: check a character's compatibility class first — the glossary covers Type I-V if that's still unclear — before deciding what to pull or farm. A right-class B-rank Arc at full stars beats a wrong-class S-rank sitting unused in the inventory.