Esper Zero

Esper Zero

SCosmosSolidS tier

Introduction

Esper Zero is an S-rank Cosmos character in Neverness to Everness. Esper Zero's arc type is Solid and role is Damage. Faction: Eibon Antique Shop.

On our Neverness to Everness tier list Esper Zero is S tier, 7th of the 22 characters ranked, from where 12 current tier lists put Esper Zero.

Other Cosmos characters in Neverness to Everness: Chiz, Edgar, Hotori and Shinku.

Is Esper Zero good?

Esper Zero dumps most of their damage into two moves, the Ultimate and the Skill, rather than sustained attacks, and that burst grows naturally over a run as they pick up more Awakening Effects. Since that burst is also their strongest source of damage overall, they work best as a Sub-DPS who can prop up an early-to-mid game team rather than someone geared toward the endgame.

Their preferred gear reinforces that burst-and-recharge loop: an Eclipse-based option speeds up Ultimate energy against groups, and a stat-scaling accessory rewards staying above half HP, which a unit that only comes in briefly tends to do anyway.

Strengths

  • Burst damage scales up naturally as Awakening Effects accumulate over a run
  • Preferred gear speeds up Ultimate energy recovery against groups

Weaknesses

  • Best suited to the early game rather than the endgame

Best build for Esper Zero

From 2 guides

Arc

4 options
  1. 12 of 2
  2. 2
    The Forgotten
    2 of 2
  3. 31 of 2
  4. 41 of 2

Skill priority

  1. 1
    Divide by ZeroUltimate
  2. 2
    Appraise and EngraveSkill
  3. 3
    Appraisal - SeveranceBasic AttackRift BlossomSupport Skill

Cartridge

2 options
  1. 1
    Lost Radiance(4)
    2 of 2
  2. 2
    Shadow Creed(4)
    1 of 2

Main stats

Cartridge
Cycle Intensity >Cosmos DMG >CRIT Rate >CRIT DMG
Substats
CRIT Rate=Cycle Intensity >Universal DMG >CRIT DMG=ATK%

Profile

Esper Zero carries the title "Anomaly Investigator". Esper Zero's birthday is Player's Choice. Esper Zero was released on 29 April 2026.

Background

Esper Zero

Hmm... Anomaly cases interest me too.: Official Character Profile

Esper Zero is a playable Cosmos character and the main protagonist of Neverness to Everness.

They are a member of Eibon Antique Shop.

Players can choose to play as either a male or female version of Esper Zero, with the option to switch between them later after completing the Side Quest In the Reflection.

Personality

Esper Zero is a generally kindhearted person.

They are always willing to lend a hand, both to their friends and to complete strangers.

Still, they do not let people walk all over them.

They are known for standing their ground, and for calling out corruption and unfair treatment.

They can also be somewhat sassy at times, making sarcastic comments or directing playful insults at their friends.

At their core, Esper Zero is a naturally curious person.

They want to learn more about Hethereau, about anomolies, and about their past that they have forgotten.

Appearance

Female Zero: A young woman of average stature.

She has gray eyes and gray hair, which is cut just above her shoulders.

She wears a black headband in her hair, and has a small ahoge atop her head.

Her default outfit consists of a white button-up shirt, a purple tie, a cropped black jacket, and a pleated black skirt.

She wears black fingerless gloves and has a belt tied around her left thigh.

Male Zero: A young man of average stature.

He has gray eyes and short gray hair. He has two small ahoges atop his head.

His default outfit consists of a white button-up shirt, a purple tie, a black jacket, and a pair of black pants.

He also wears black fingerless gloves.

Skills

17
  • Appraisal - Severance

    Basic Attack

    Channels energy through the weapon, performing up to 5 consecutive attacks that deal Cosmos DMG. Handling a sword is the only way I feel in control.

  • Appraise and Engrave

    Skill

    Opening, exposed! Performs 3 consecutive weapon strikes. Leaps into the air to charge. Fires an Esper Cannon that deals 1 instance of Cosmos DMG to an area. Deals an additional 1 instance of Cosmos DMG to the first enemy hit whose level is below Zero's own level. A surreal scene, outlined in slashes, emerges from thin air.

  • Divide by Zero

    Ultimate

    Sweeps away the unseen lines that connect the Nexus in a dance of blades. Deals multiple instances of Cosmos DMG to an area. I sense an Anomaly Nexus, bound by invisible, silent, intangible ties… All severed in an instant with a single graceful strike.

  • Rift Blossom

    Support Skill

    Slashes through space and detonates a rift, dealing 2 instances of Cosmos DMG in an area.

  • Five-Star Paragon

    Life Skill

    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 5 or below. Level 3: Increases Affinity gained from Gifts by 5% when Bond Level is 6 or below. Level 4: Increases Affinity gained from Gifts by 5% when Bond Level is 7 or below. Level 5: Increases Affinity gained from Gifts by 5% when Bond Level is 8 or below.

  • Appraisal - Break

    Basic Attack

    Appraisal - Break | Wields the weapon mid-air and plunges, dealing 1 instance of Cosmos DMG to an area upon impact.

  • Flash of Inspiration

    Critical Riposte

    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.

  • Appraiser

    Passive

    Passive - Appraiser | Charge Enhancement: Restores HP equal to 50% of Zero's Base ATK when the active character gains Ultimate Energy.

  • Anomaly Perception

    Passive

    Passive - Anomaly Perception | Ultimate: Divide by Zero damage increases by 25%.

  • Blooming Gaze

    Awakening

    Awakening | 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.

  • Finding the Calling

    Awakening

    A2 | Finding the Calling | Grants an additional 8 Ultimate Energy after successfully casting Appraise and Engrave.

  • Anomalies Record

    Awakening

    A3 | Anomalies Record | Increases Divide by Zero's Crit Chance by 50%.

  • Undecided Factors

    Awakening

    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%.

  • Theopneustos

    Awakening

    A5 | Theopneustos | Increases Zero's ATK by 10% for 20s when triggering Support Skill.

  • Deceptive Liberation

    Awakening

    A6 | Deceptive Liberation | Increases Extra DMG Ratio of Appraise and Engrave to 300% of ATK.

  • Discern

    Resonance

    Resonance | R1 | Discern | Increases the skill level of Appraisal, Appraise and Engrave, and Divide by Zero by 1.

  • Zero Display

    Resonance

    R2 | Zero Display | Grants the team 12% ATK for 20s when Zero triggers any Cosmos Esper Cycle

How to get Esper Zero

Esper Zero's signature arc type is The Rain That Shook the World.

Upgrade materials

  • Lv.20→Lv.30Beetle Coin x25,000
  • Lv.30→Lv.40Beetle Coin x50,000, Charging Knight Spark Plug x2
  • Lv.40→Lv.50Beetle Coin x75,000, Charging Knight Spark Plug x8
  • Lv.50→Lv.60Beetle Coin x100,000, Charging Knight Spark Plug x16
  • Lv.60→Lv.70Beetle Coin x125,000, Charging Knight Spark Plug x24
  • Lv.70→Lv.80Beetle Coin x150,000, Charging Knight Spark Plug x36

Art

Esper Zero key art

More Cosmos characters

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