Iroi Build Guide: Best Arcs, Teams and Rotation | NTE

Jessica Turner

Jul 13, 2026

Appraisers! Iroi is an upcoming S-Rank Anima character in Neverness to Everness and a member of CSU-2 alongside Mint and Shinku. She functions as a Healer and Buffer whose kit revolves around Imagination, a personal resource built through Basic Attacks and Skills. Her dual-branch Ultimate shifts between sustained team healing and offensive resurrection support, making her one of the more mechanically flexible supports heading into Version 1.2. This NTE Iroi build guide covers her best Arcs, Cartridges, Modules, Awakening priorities, team compositions, and rotation tips.

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Iroi Character Overview

Healer / Buffer
Iroi	Rarity	S-Rank
	Esper Type	Anima
	Arc Type	Liquid

Iroi's kit centers on building and spending Imagination — her primary resource. Her Redirect Skill heals the team and grants an ATK Bonus based on her own ATK, while the Hold version places up to three allies into the Regression state, enabling bonus damage and resurrection access through her Ultimate. Her three dream companions — Morpheus, Icelos, and Phantasos — contribute to both combat through summon attacks and passive utility through her Awakening nodes. The Sympathetic Nerves passive grants the whole team a brief DEF Ignore window each time she heals, adding a layer of offensive support on top of her sustain.

Iroi Skill Breakdown

Skill	Description
Basic Attack: Collaboration	Deploys her lambs in a sequence of up to 5 attacks that deal Anima DMG, building Imagination with every hit that connects.
Basic Attack: Daydream	Holding the Basic Attack spends Imagination to charge up, releasing up to 3 stages of Daydream based on how long the charge is held.
Basic Attack: Lucid Dream	Following up Daydream with another held Basic Attack spends Imagination to call in Morpheus, unleashing a sustained stream of Anima DMG.
Basic Attack: Wakey-Wakey	Pressing Basic Attack while airborne sends Iroi into a plunging strike that deals a single instance of Anima DMG to a surrounding area on impact. Damage scales with fall height, capping at a 100% increase. Successful hits build Imagination.
Reflexive Response	Using Collaboration immediately after a Critical Dodge triggers a follow-up swing with Phantasos, dealing a single instance of Anima DMG and reducing the target's Break gauge. Hits from this attack also contribute to Imagination buildup.
Redirect Skill: Self-Identity Extension	Tapping the Redirect Skill triggers a one-time team heal and applies an ATK Bonus to all allies scaled from Iroi's own ATK. Summoned lambs then move independently to attack and draw in nearby targets, with each ally currently in Regression dealing bonus damage based on Iroi's Base ATK. Activating this skill also builds Imagination.
Redirect Skill: Future Self Continuity	Holding the Redirect Skill weaves dreamlike illusions across the battlefield, placing up to 3 allies into the Regression state where they assist in combat. Regression is automatically lifted once the encounter ends.
Ultimate: 3.8-Billion-Year Mirage	Activates one of two dream branches depending on the current Imagination. Below the threshold, Iroi opens the Dream of the Horned Gate, providing continuous healing to all allies. At the threshold, she opens the Dream of the Ivory Gate, dealing continuous AoE Anima DMG to enemies while allowing one Regression ally to be temporarily revived and restored. The dream runs until Imagination is fully depleted, at which point any revived character returns to Regression. During the dream, Imagination cannot be gained, but Daydream and Lucid Dream remain free to use.
Passive: Mirror Image	Mirror Image: When the active Vita Bud expires, a copy is automatically generated in its place. This copy does not produce a further replacement.
Passive: Sympathetic Nerves	Sympathetic Nerves: Each time Iroi heals an ally, the entire team gains a brief window of DEF Ignore.

Iroi Skill Priority

Skill	Priority
Redirect Skill (Tap) Future Self Continuity	★★★★★
Ultimate 3.8-Billion-Year Mirage	★★★★☆
Basic Attack Collaboration	★★★☆☆
Support Skill Bang!	★★☆☆☆

Prioritize Future Self Continuity first — it is Iroi's primary source of healing, ATK buffing, and Imagination generation. The Ultimate follows closely, as both branches provide critical utility across all content types. Collaboration and Bang! contribute but see limited use as direct upgrade targets.

Iroi Best Arcs

Best In Slot - The Wrong Gate

Best In Slot Arc
The Wrong Gate	S-Rank
Type	Liquid
Atk	570-Max
Atk%	30%-Max
Arc Effect: Mixing T1 - Raises the wearer's ATK by 16%. Each time the wearer heals an ally, all teammates gain a 15% DMG boost, while the wearer also receives a 30% Anima DMG bonus for 20 seconds — with the duration resetting on subsequent triggers. This effect is unique per team.

The Wrong Gate is Iroi's signature Arc and her strongest option. Its high raw ATK directly scales her ATK Bonus buff from Future Self Continuity and the additional ATK granted through the Transparent Awakening node — meaning teammates benefit more from every heal. The team-wide damage buff that activates on healing aligns seamlessly with her constant sustain output, making this Arc effective in both survival and aggressive team compositions.

Iroi Best Cartridges and Modules

Best in Slot — Speedy Hedgehog

Best in Slot Cartridge

Speedy Hedgehog

Epic (2): Charge Efficiency +12%.
Legendary (4): Increase all allies' ATK by 15% for 20s after the wearer casts Ultimate. Effect does not stack.

Speedy Hedgehog is the definitive Cartridge for Iroi. The 2-piece Charge Efficiency bonus lets her reach her Ultimate faster — critical for maintaining consistent healing uptime or reaching the Dream of the Ivory Gate threshold more reliably. The 4-piece ATK buff activates every time she casts her Ultimate, turning each rotation into a team-wide damage boost. This Cartridge reinforces both her sustain and her support value simultaneously.

Iroi's console passive, Type III Specialization, grants a +10% ATK Bonus for each Type III Module equipped. Running a full set of Type III Modules maximizes this bonus.

Recommended Main and Substats:

Main Stat

Healing Bonus / HP Bonus

Substats

HP Bonus

Atk

Cycle Intensity

Iroi Best Team Compositions

Recommended Team — Shinku Burst Team (Iroi as Healer and Buffer)

Main DPS

Sup DPS

Support

Healer / Buffer

Shinku

Hathor

Esper Zero

Iroi

Iroi's primary team pairs her alongside Shinku, Hathor, and Esper Zero. Iroi handles all sustain through continuous healing via her Redirect Skill, Support Skill, and Ultimate, while her Sympathetic Nerves passive grants the team a DEF Ignore window after each heal — directly amplifying Shinku's burst windows. Her Regression mechanic provides a safety net during Shinku's high-risk Surging Crimson windows. Esper Zero supplies off-field Charge generation that feeds into the team's Cycle rotations, while Hathor contributes additional damage pressure during Shinku's off-field phases.

Iroi Awakening and Resonance

Awakening

Awakening	Name	Effect
A1	Iterated Prisoner's Dilemma	Improves the rate at which Iroi builds Imagination, while also allowing it to passively regenerate whenever she is off-field.
A2	Strategy: Tit for Tat	Whenever any ally uses a skill, one of Iroi's three dream companions, Morpheus, Icelos, or Phantasos — is randomly called in to deliver a single assist attack. This effect has a cooldown.
A3	Trait: Cooperative	Allies at low HP receive increased healing from Iroi.
A4	Trait: Retaliatory	Allies currently in the Regression state gain a bonus to their ATK Ratio.
A5	Trait: Transparent	Extends the Sympathetic Nerves passive with an additional effect — each time Iroi heals, allies also gain a temporary ATK boost scaled from her Base ATK, up to a set cap.
A6	Trait: Forgiving	Characters revived through 3.8-Billion-Year Mirage return with restored HP, Cycle Energy, and Ultimate Energy.

Resonance

Resonance

Effect

Primate Among All Things

(Unlock at Awakening Level 3)

Increases the skill level of Collaboration, Future Self Continuity, and 3.8-Billion-Year Mirage by 1.

Self-Proclaimed Crown of Creation

(Unlock at Awakening Level 6)

Increases allies' Crit DMG. Iroi deals additional DMG for each ally in the Regression state.

How to Play Iroi in NTE

Build Imagination between rotations — Use Collaboration Basic Attacks and the tapped Redirect Skill during off-cycle windows to keep Imagination building toward her Ultimate threshold.
Use Bang! on swap-in — Iroi's Support Skill heals all allies, deals Anima DMG, and builds Imagination in one action. Prioritize it when teammates need immediate sustain.
Choose your Ultimate branch based on Imagination — Below threshold, use Dream of the Horned Gate for continuous healing. At threshold, use Dream of the Ivory Gate for AoE damage and Regression resurrection.
Preload Regression before hard content — Hold Redirect Skill before high-pressure encounters to place allies into Regression, enabling resurrection access when it matters most.
Leverage DEF Ignore on heal — Sympathetic Nerves triggers a team DEF Ignore window after each heal. Time Shinku's burst windows around Iroi's heals to maximize damage.

Conclusion

Iroi is shaping up to be one of NTE's strongest Healer and Buffer options in Version 1.2, bringing reliable sustain, Regression mechanics, passive DEF Ignore buffing, and a flexible dual-branch Ultimate to any lineup. Her The Wrong Gate signature Arc, Speedy Hedgehog Cartridge, and natural synergy with Shinku, Hathor, and Esper Zero make her a well-rounded pick heading into the new version. All details remain subject to change and will be updated upon her official release. If you're preparing to pull on her The Lifeline banner or topping up ahead of Version 1.2, LootBar offers up to 22% off on Neverness to Everness Top up with 3-minute delivery and a 4.9/5 Trustpilot rating — great value for any Appraiser.