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Esper Zero
April 29, 2026 at 02:50 PM
Clarify Esper Zero weapon (sword is the primary weapon)

Esper Zero is the player-controlled protagonist of Neverness to Everness. During character creation, players choose between a male and female version of the character. Both versions are mechanically identical; the choice affects only the character's appearance, voice lines, and how NPCs address them in dialogue. Classified as an S-Class Cosmos element character, Esper Zero wields a sword and fills the DPS role on any team.

As a free starter character given to every player, Esper Zero is designed to be strong enough to carry through the early and mid game without issue. The character's kit revolves around fast sword combos, Cosmos-element damage, and the ability to rapidly fill the Esper Cycle Meter for powerful team reactions. Unlike gacha characters, Esper Zero is always available and cannot be missed.
Attribute | Details |
|---|---|
Real Name | Player-chosen |
Element | |
Weapon | Sword (Esper Cannon as a separate aerial-skill component) |
Rank | S-Class |
Role | DPS |
Faction | |
Gender | Player-selected (Male or Female) |
Arc Compatibility | Solid |

Esper Zero is the first "unlicensed" Anomaly Hunter in Hethereau. The city's anomaly response system is typically run through licensed branches, each operating under official oversight and receiving government funding. Eibon is an exception. Severely underfunded and operating out of a struggling antique shop in Bridge Crossing, the branch takes on anomaly commissions from the public that the larger, better-equipped branches ignore or deprioritize.
As an Appraiser, Esper Zero's job is to investigate and resolve supernatural anomalies threatening the city. The role involves tracking down reports of anomaly activity, assessing the threat level, and neutralizing whatever is causing the disturbance. Unlike other Anomaly Hunters who follow strict protocols, Esper Zero and the Eibon crew take a more improvisational approach, partly out of necessity (limited resources) and partly because of the protagonist's unorthodox abilities.
The main story follows Esper Zero as they build up Eibon from a struggling operation into a legitimate force, uncovering deeper conspiracies about the nature of Anomalies in Hethereau along the way. The supporting cast includes fellow Eibon members like Nanally, Hotori, Sakiri, Adler, and Daffodil, each with their own personal storylines and motivations.
At the start of the game, players choose between a male and female version of Esper Zero. Both versions share the same stats, abilities, and combat animations. The choice determines the character's appearance, voice acting, and minor dialogue variations where NPCs use gendered forms of address.
After progressing through the main story, players unlock the side quest "In the Reflection," which allows them to swap between the male and female forms at will. Completing this quest adds a gender-swap option to the character menu. The swap is purely cosmetic and can be done at any time outside of combat. This feature was confirmed during the Co-Ex Test and received positive feedback from the community for letting players change their mind without starting a new account.
Esper Zero's signature weapon is the Esper Cannon, a versatile armament that can shift between a sword configuration for close-range combat and an energy projection mode for ranged attacks. The Esper Cannon is unique to the protagonist and cannot be equipped by other characters. Its Cosmos-element infusion is what enables Esper Zero's fast attack chains and the Cycle Surge ability that instantly fills the Esper Cycle Meter.
Lore-wise, the Esper Cannon is described as an experimental prototype developed by the Bureau of Anomaly Control but never put into mass production. How it ended up in the hands of an unlicensed Anomaly Hunter at Eibon Antique Shop is one of the early story mysteries. The weapon responds to Esper Zero's Cosmos element attunement, suggesting a deeper connection between the protagonist and the anomaly phenomena they investigate.
Esper Zero's combat kit is built around speed and Cosmos-element damage. The character excels at sustained DPS through rapid sword combos and has tools to accelerate the team's Esper Cycle reactions.

Ability | Type | Description |
|---|---|---|
Basic Attack | Normal Attack | A 5-hit sword combo. Each hit deals Cosmos DMG with increasing damage on later hits in the chain. Fast execution speed allows for quick break bar contribution. |
Rift Blossom | Support Skill | Slashes through space to hit enemies at range. Deals Cosmos DMG in an area. Useful for hitting groups of enemies or striking targets at mid-range without closing the gap. |
Divide by Zero | Ultimate | A powerful finishing move that deals multiple instances of Cosmos DMG. High total multiplier makes it one of the strongest burst damage tools in the early game. |
Cycle Surge | 100 Cycle Rate Skill | Instantly fills the Esper Cycle Meter. This ability allows Esper Zero to trigger Esper Cycle reactions on demand, making the character an excellent reaction enabler. |
The combination of fast normal attacks for sustained damage and the 100 Cycle Rate skill for instant reaction triggers makes Esper Zero versatile in both solo and team contexts. In the early game, Esper Zero often is the primary on-field DPS, with the other three team members rotating in for their skills and ultimates before switching back.
As the player character, Esper Zero is an Appraiser investigating Anomalies throughout Hethereau. Unlike other characters who have fixed personalities and storylines, Esper Zero acts as the lens through which players experience the world. Dialogue choices occasionally appear during story quests, but these are primarily flavor choices that affect NPC reactions rather than branching the plot.
The Appraiser role places Esper Zero at the center of every major story beat. While teammates like Nanally, Hotori, and Sakiri have their own character Arcs that can be played independently, the main story missions always feature Esper Zero as the lead. This design ensures the protagonist remains relevant regardless of which gacha characters a player has acquired.
Esper Zero is given to all players at the start of the game during the tutorial prologue. No gacha pulls are needed and no special conditions must be met. The character is part of the initial roster alongside Haniel (obtained as a pre-registration milestone reward). This guarantees that every player begins with a functional two-character core regardless of gacha luck.
Because Esper Zero is a guaranteed character, the game is balanced around having this character available. Early story content and tutorials are designed with Esper Zero's kit in mind. The character remains competitive in late-game content, though most players eventually shift them to a sub-DPS or reaction enabler role as they acquire more specialized gacha characters.
Esper Zero's 5-hit combo deals the most damage on the final two hits. Try to complete full chains whenever possible rather than canceling early.
The 100 Cycle Rate skill is Esper Zero's most unique tool. Use it to trigger Esper Cycle reactions exactly when you need them, especially during enemy break windows.
Divide by Zero hits multiple times. If used during an enemy's broken state, the total damage is massive.
Pair Esper Zero with characters from adjacent elements on the Esper Cycle wheel (Cosmos neighbors) for the best reaction synergy.
Even after pulling stronger DPS characters, Esper Zero remains useful as a Cycle Meter filler. Do not stop investing in the character entirely.
Rift Blossom is good for hitting enemies that like to back away. Use it to maintain pressure without chasing.
These are the in-game skill names for this character. Skill effects are described elsewhere in the article.
Type | In-Game Name |
|---|---|
Basic Attack | Appraisal |
Critical Riposte | Flash of Inspiration |
Skill | Appraise and Engrave |
Ultimate | Divide by Zero |
Life Skill | Five-Star Paragon |
Each skill block lists the in-game slot it occupies, the official skill name, and the short description shown on the character menu, followed by the named sub-actions of that skill. Sub-action descriptions are quoted from the in-game tooltip text.
Deals Cosmos DMG.
Sub-Action | Effect |
|---|---|
Appraisal | Swordsmanship in second nature. Performe up to 5 consecutive attacks. |
Appraisal - Descent | Swings the sword in the air and plunges, dealing 1 instance of Cosmos Damage to an area upon impact. |
Critical Riposte: Flash of Inspiration | Triggers when using Appraisal - Severance after a Critical Dodge. Seizes the opening from the enemy's missed attack and swings the weapon to counter, dealing 1 instance of Cosmos DMG to an area and reducing Break. |
Deals Cosmos DMG, dealing an additional instance of Cosmos DMG to the first enemy hit that is not higher level than the caster.
Sub-Action | Effect |
|---|---|
— | Slashes at perceived weak spots, dealing 4 instances of damage, and deals additional damage to the nearest target of a lower level than the character. |
Deals Cosmos DMG.
Sub-Action | Effect |
|---|---|
— | As I dance, I'll be sweeping away Nexus lines that only I can see. Deals multiple instances of damage. |
Deals Cosmos DMG.
Sub-Action | Effect |
|---|---|
— | Unleashes a slash with the force of cutting through space itself, detonating vulnerable Sunders to deal 2 instances of area Cosmos DMG. |
Zero has 11 Arcs flagged as a thematic match by the in-game character recommendation panel. Refinement effects below are quoted from each Arc's tooltip and do not represent a tier ranking.
Arc | Rarity | Refinement | Refinement Effect |
|---|---|---|---|
Blow up the Crowd | 5-Star | Beat King | Increases the active character's ATK by 10% while the wearer is off-field, and increases the active character's ATK by 2% when the wearer deals damage, up to 4 stacks and triggering at most once every 2s. Resets the effect when the wearer becomes the active character. Increases Psyche DMG by 12% while the wearer is the active character, and increases Psyche DMG by 2% when dealing Psyche DMG with a Basic Attack, up to 10 stacks. Triggers at most once every 0.3s. Resets the effect when switching characters. |
Day Off | 5-Star | Eclipse | Increases wearer's ATK by 30%. Unlocks Arc: Eclipse. Arc: Eclipse — The wearer creates a 40s Eclipse. During the Eclipse, each enemy defeated restores 6 Ultimate Energy, up to 5 times. (cooldown: 300s). |
Fluff of Fearlessness | 5-Star | Popping Candy | Increases ATK by 25% for 10s after the wearer casts an Ultimate. Effect does not stack. |
Hethereau's Keeper | 5-Star | Justice Executioner | Increases ATK by 15%. Increases damage dealt to Bosses by 15%. Unlocks Arc: Officer Whisker. Arc: Officer Whisker — Summons Officer Whisker to assist in combat. Officer Whisker continuously attacks enemies, dealing 100% of the wearer's ATK as damage per hit. Lasts 30s. Cooldown: 60s. |
Marching Beyond Time | 5-Star | Time Beyond Time | Increases ATK by 16%. Enters Wastelab and clears current Wastetime when the wearer casts a Redirect Skill. While in Wastelab, allies gain 1stack of Wastetime each time they use a Redirect or Support Skill, up to 3 stacks. When the wearer uses their Ultimate in Wastelab, they exit Wastelab and consume all Wastetime, increasing Ultimate Crit DMG by 24%, plus an additional 8% per Wastetime consumed. Consuming 3 Wastetime stacks at once grants an extra 12% DEF Ignore for 3s. |
Reality Refuge | 5-Star | Swallowtail | Increases Anima DMG by 15%. Increases the wearer's Attachment DMG by 10%. Increases the Attachment DMG bonus to 20% for 6s when the wearer casts an Ultimate. Effect does not stack. |
The Rain That Shook the World | 5-Star | ||
Your Happiness is Priceless | 5-Star | Nacupeda | Increases HP by 24%. Grants one of the following random effects when the wearer casts an Ultimate: 1. Recovers 20% of Max HP for the team member with the lowest HP percentage. 2. Grants a Shield equal to 20% of the wearer's Max HP for 15s. 3. Recovers 10% HP for all team members. Triggers once every 30s. |
The Forgotten | 4-Star | Picture Frame | Increases ATK by 20% when the wearer’s HP is above 50%; increases DEF by 20% when HP is below 50%. |
Time Bandit | 4-Star | Picky | Increases Break Intensity by 90 for 10s after the wearer casts a Redirect Skill. Effect does not stack. Unlocks Arc: Picky. Arc: Picky — Summons Picky to unlock all nearby lockable objects. |
First Step to Success | 3-Star | Noros | Increases wearer's ATK by 12% for 10s when casting a Redirect Skill. Triggers up to once every 20s. |
Ascension lifts Zero's level cap one step at a time. Each phase requires the listed Coins (the world currency) plus a fixed list of materials. World Level shown is the minimum required to access the breakthrough.
Phase | Lv Cap | World Lv | Coins | Materials |
|---|---|---|---|---|
Phase 1 | 30 | 1 | 25,000 | Lost Whispers x5 |
Phase 2 | 40 | 2 | 50,000 | Lost Whispers x12, Charging Knight Spark Plug x2 |
Phase 3 | 50 | 3 | 75,000 | Obscure Whispers x6, Charging Knight Spark Plug x8 |
Phase 4 | 60 | 4 | 100,000 | Obscure Whispers x12, Charging Knight Spark Plug x16 |
Phase 5 | 70 | 5 | 125,000 | Paradoxical Whispers x6, Charging Knight Spark Plug x24 |
Phase 6 | 80 | 6 | 150,000 | Paradoxical Whispers x9, Charging Knight Spark Plug x36 |
Zero's base HP, ATK, and DEF at key level milestones. These numbers are the raw character base values before Awakening, Console Modules, Cartridges, or Arc bonuses modify them.
Level | HP | ATK | DEF |
|---|---|---|---|
Lv 1 | 1,000 | 43 | 60 |
Lv 10 | 1,900 | 81 | 114 |
Lv 20 | 2,900 | 124 | 174 |
Lv 30 | 4,900 | 209 | 294 |
Lv 40 | 6,900 | 294 | 414 |
Lv 50 | 8,900 | 379 | 534 |
Lv 60 | 10,900 | 464 | 654 |
Lv 70 | 12,900 | 549 | 774 |
Lv 80 | 14,900 | 634 | 894 |
Awakenings unlock through duplicate copies of the character. Each tier from A1 to A6 grants a named upgrade.
Tier | Awakening Name | Effect |
|---|---|---|
A1 | Blooming Gaze | Deals 1 additional hit of 200% ATK to enemies of lower level on first hit. This damage ignores 75% of the target's DEF. |
A2 | Finding the Calling | Grants an additional 8 Ultimate Energy after successfully casting Appraise and Engrave. |
A3 | Anomalies Record | Increases Divide by Zero's Crit Chance by 50%. |
A4 | Undecided Factors | Every 1 point of Zero's Base ATK increases Ultimate: Divide by Zero damage by 0.1%, up to a maximum of 25%. |
A5 | Theopneustos | Increases Zero's ATK by 10% for 20s when triggering Support Skill. |
A6 | Deceptive Liberation | Increases Extra DMG Ratio of Appraise and Engrave to 300% of ATK. |
Resonance bonuses unlock at specific Awakening milestones, not from additional duplicates. R1 activates when the character reaches A3, and R2 activates at A6. Both stack on top of the named Awakening node effects.
Tier | Resonance Name | Unlocks At | Effect |
|---|---|---|---|
R1 | Discern | A3 | Increases the skill level of Appraisal, Appraise and Engrave, and Divide by Zero by 1. |
R2 | Zero Display | A6 | Grants the team 12% ATK for 20s when Zero triggers any Cosmos Esper Cycle. |
Each character has a Console passive that activates when the matching Module type is equipped on their Console grid. This is a flat passive that scales linearly with the count of matching Modules and is the strongest reason to commit to a single Module type when building this Esper.
Type III Specialization: Increases ATK by 10% for each Type III Module equipped.
Life Skills are out-of-combat benefits that activate while the character is assigned to the relevant non-combat activity (Eibon Antique Shop owner duty, Sea Angler trips, City Tycoon shifts, and similar passive systems). Each level unlocks an additional or stronger benefit and stacks with the previous levels.
Level | Effect |
|---|---|
Level 1 | Increases Affinity gained from Gifts by 5% when Bond Level is 4 or below. |
Level 2 | Increases Affinity gained from Gifts by 5% when Bond Level is 6 or below. |
Level 3 | Increases Bond Level limit to Lv 8. (Default Lv 6) |
Level 4 | Increases Bond Level limit to Lv 9. |
Level 5 | Increases Bond Level limit to Lv 10. |
Language | Voice Actor |
|---|---|
English | Suzie Yeung & Hunter McCoy |
Japanese | 内田真礼 & 内田雄馬 |
Chinese | 曾彤 & 马洋 |
Korean | 이은조 & 박기욱 |