Trigger — Zenless Zone Zero Character Profile

Biography

The story, the personality, and everything in between.Read biographyClose biography

Zenless Zone Zero

Trigger扳机

Obol Squad sniper in the New Eridu Defense Force

Trigger is an Obol Squad sniper in the New Eridu Defense Force’s Obsidian Division in the action role-playing game Zenless Zone Zero. Damage to her ordinary eyesight has not ended her military career: within Hollows, she can perceive Ether fluctuations, while exceptional hearing and other trained senses help her navigate the wider world. Her unassuming, soft-spoken manner belies a watchful soldier fiercely devoted to her comrades, with a fondness for harmonica music and red bean buns.

Biography

The Sniper of Obol Squad

Trigger serves alongside Soldier 11 in Obol Squad, part of the Defense Force’s Obsidian Division. She specializes in sniping, reconnaissance, and covert observation, but is also trained to deal with close-range threats. Her value to the unit lies as much in patient surveillance and well-timed support as in the precision of her shots.

A Different Way of Perceiving Hollows

Trigger cannot rely on ordinary eyesight the way most people do. Inside a Hollow, however, her Ether Vision lets her detect the positions and changes of entities that emit Ether fluctuations, including people, Ethereals, and Ether-related objects. Hearing, touch, and other finely trained senses help her orient herself elsewhere. Neither ability gives her unrestricted conventional sight.

A Quiet Presence in New Eridu

Outside combat, Trigger is more understated than her reputation might suggest. She can approach so silently that other people fail to notice her, and her interest in harmonica music and red bean buns gives the otherwise formidable sniper recognizable everyday habits. Her attentiveness to companions is as prominent as her patience on a mission.

Personality and Motivations

Trigger speaks gently and listens more than she interrupts. She often notices details that others miss, yet her responses can be disarmingly literal, especially when she applies a soldier’s practical reasoning to everyday matters. Because she moves almost soundlessly, even a friendly visit can catch people by surprise.

She places considerable weight on the safety of her comrades, preferring quiet, dependable support to recognition. This concern is visible in the care she takes over small things as well as in combat. Her unwavering defense of red bean buns as field rations also reveals a surprisingly earnest sense of humor: once she has a practical argument, she takes it seriously.

Appearance

Trigger wears a dark visor over her eyes and has long pale-blonde hair, gathered behind her head with red triangular hair ornaments. Her outfit combines dark, close-fitting tactical clothing with prominent yellow protective gear, straps, and equipment. Together with her oversized rifle, the black-and-yellow uniform makes her silhouette distinctive.

Quick facts

Organization: New Eridu Defense Force
Unit: Obsidian Division — Obol Squad
Specialty: Sniper; reconnaissance, surveillance, and stealth
Game attribute: Electric
Game specialty: Stun (S-Rank Agent)
Signature perception: Ether Vision inside Hollows
Notable interests: Harmonica music and red bean buns

Abilities

Precision Marksmanship

Trigger is an accomplished sniper who provides long-range fire support and maintains a strong awareness of enemy positioning.

Ether Vision

Inside Hollows, Trigger can identify the locations and changes of entities that emit Ether fluctuations, giving her a specialized means of perception despite her diminished conventional eyesight.

Limitations: The described perception depends on Ether fluctuations and Hollow conditions; it is not unrestricted everyday sight.

Sharpened Nonvisual Senses

Her trained hearing and other senses allow her to register subtle changes and move with exceptional confidence even when ordinary visual information is limited.

Stealth and Covert Observation

Trigger uses her nearly silent movement and military training for surveillance, reconnaissance, and other covert assignments.

Electric Stun and Aftershock Support

As a playable S-Rank Electric Stun Agent, she attacks from Sniper Mode and can support teammates with Quick Assists and Aftershock-related effects.

Limitations: These are gameplay mechanics; they should not be treated as evidence of unlimited narrative power.

Relationships

Soldier 11

fellow Obol Squad member

Trigger works with Soldier 11 and treats her safety and competence with obvious seriousness. Soldier 11, in turn, expresses confidence in Trigger’s instincts, abilities, and judgment.

Phaethon (Belle and Wise)

trusted Proxy collaborators

Trigger cooperates with the Proxy siblings on dangerous cases. Her bond with them is built through shared work and a growing willingness to accept help, rather than an assumed relationship with the reader.

Seed

fellow Obol Squad member

Seed and Trigger serve within the same Defense Force squad. Trigger takes an attentive interest in the well-being of those working alongside her.

Interesting facts

Trigger can approach so quietly that an official character interview finds her sitting in plain sight without the visitors noticing her.

The moment translates her stealth specialty into gentle, almost comic everyday characterization.

She treats red bean buns as practical field food and seriously debates their value with Tsukishiro Yanagi.

Her reasoning makes an ordinary snack into a small clash between military efficiency and appreciation of taste.

In official promotional character material, Soldier 11 praises Trigger not only for combat instinct but also for managing the dorm.

The detail places mundane reliability alongside her dangerous battlefield reputation.

Frequently asked questions

Who is Trigger in Zenless Zone Zero?

Trigger is the Obol Squad sniper of the New Eridu Defense Force, a playable S-Rank Electric Stun Agent recognized for her precise marksmanship and unusual senses.

Is Trigger blind?

Her ordinary vision is severely impaired. Within Hollows she can perceive Ether fluctuations, and she relies on highly trained other senses outside that specialized perception.

What is Ether Vision?

It is Trigger’s ability to distinguish the positions and changes of Ether-emitting entities in Hollow environments, including living beings and Ethereals.

What faction does Trigger belong to?

She belongs to Obol Squad within the New Eridu Defense Force’s Obsidian Division.

Does Trigger work with Soldier 11?

Yes. They are Obol Squad comrades, and Soldier 11 openly trusts Trigger’s skill and judgment.

What kind of weapon does Trigger use?

She is a trained sniper associated with a distinctive high-powered rifle and close-range military techniques.

What is Trigger’s playable role?

She is an S-Rank Electric Stun Agent whose Sniper Mode, assist mechanics, and Aftershock support are central to her combat kit.

What does Trigger enjoy outside missions?

Harmonica music and red bean buns are among her best-established personal interests.

Major story spoilers below.

Lyre Squad and the Fall of the Old Capital

Before joining Obol Squad, Trigger was a shy young sniper taken into Lyre Squad of the Defense Force’s Chrysoberyl Division by its captain, Charon. An orphan, she found a family among five comrades who helped her grow more confident and skilled. When Hollow Zero expanded catastrophically, Lyre Squad fought inside the disaster zone expecting reinforcements that never arrived. Its members continued protecting her after she suffered severe Ether damage to her eyes. They entrusted the unconscious Trigger to a retreating soldier, but none of them escaped.

The last thing Trigger saw before losing most of her ordinary sight was her squadmates looking back at her. Their images lingered in her damaged vision, and for years she took those vivid afterimages as a sign that her friends might still be alive. Although she developed Ether Vision, the new perception was also bound up with her grief and her refusal to abandon the search.

The Proxy Case and the Name Charon

After leaving the Defense Force, Trigger approached the then-inexperienced Proxies Belle and Wise using the codename Charon, borrowed from her former captain. Their search for missing soldiers collided with a string of murders committed by Grim Vulture, a sniper targeting people tied to the retreat from Hollow Zero. The killer was Zoe, another survivor whose grief had hardened into revenge against those she blamed for her squad’s destruction.

During their confrontation, Zoe reveals that she was the soldier who carried the blinded, unconscious Trigger out of Hollow Zero at Lyre Squad’s request. The revelation links Trigger’s survival to the very person now endangering other survivors. Trigger refuses to accept murder as a way to honor the dead. She defeats Zoe in a sniper duel and plays the melody "Homecoming" on a bullet-damaged harmonica as Zoe dies.

Nathan, the younger brother of Lyre Squad member Lethe, then gives Trigger a recording her comrades made to celebrate her thousandth day with them. Hearing their voices and encouragement helps her recognize their final memories as a farewell, not evidence that they are still waiting to be rescued. Trigger chooses to live by their wish to protect others, returns to the Defense Force, joins the newly forming Obol Squad, and resumes her own codename.

Obol Squad and an Unfinished Investigation

In the Version 1.6 story, Trigger helps investigate military secrets connected to Soldier 11 and Soldier 0 - Anby. She remains worried about Soldier 11’s safety, especially as questions about the soldiers’ past and the old capital emerge. Her larger goal—uncovering the truth behind that catastrophe—is not neatly settled by these events.

Trigger continues operating with Obol Squad in later story content. During the Version 2.2 operations, she supports the Proxies and fellow soldiers against threats involving the Exaltists and Sacrifice. In Seed’s Agent Story, she and her squad notice Seed’s troubling behavior and turn to Phaethon for help. Once the truth about Seed Sr. surfaces, Trigger remains among those supporting Seed. These are continuing duties, not a definitive ending to her story.

Additional story facts

Captain Charon had also been an orphan, and Trigger adopted her codename partly because she feared there would be no one left to remember her.

The name represents a specific act of remembrance before Trigger feels ready to use her own identity again.

While listening to Lyre Squad’s anniversary recording, Trigger identifies comrades who taught her fashion, negotiation, observation, and the courage to speak up.

The recording makes clear how many ordinary parts of Trigger’s personality were shaped by the five people she lost.

Her custom rifle, Phlegethon, was named after the longer codename initially considered for Trigger before Captain Charon gave her the shorter name.

Her weapon retains an older piece of Lyre Squad’s naming tradition, separate from the callsign she ultimately kept.

Spoiler questions

What happened to Trigger’s original squad?

The members of Lyre Squad died during the fall of the old capital after being sent into the expanding Hollow Zero disaster. Trigger survived with badly damaged eyes.

Why did Trigger use the name Charon?

She used the codename of her former Lyre Squad captain during an investigation in which she worked with Belle and Wise.

Who is Grim Vulture in Trigger’s story?

Grim Vulture is Zoe, a survivor of the old capital’s fall who murdered people she blamed for withholding aid. During the final confrontation she reveals that she once carried the injured Trigger to safety at the request of Lyre Squad.

What was on Lyre Squad’s tape?

The recording was a message prepared to congratulate Trigger on her thousandth day with the squad, including her comrades’ encouragement and the captain’s words.

Why does Trigger return to Obol Squad?

After finally accepting Lyre Squad’s loss, Trigger chooses to honor her comrades by protecting the living and investigating the truth behind the old capital’s fall. She returns to military service and joins the forming Obol Squad.

Does Trigger have a confirmed final ending?

Zenless Zone Zero is an ongoing game, and Trigger’s story has no single definitive ending in the documented arcs. She continues serving with Obol Squad in subsequent appearances, including Version 2.2.

Who saved Trigger when the old capital fell?

Zoe, the soldier later known as Grim Vulture, brought the unconscious Trigger out of Hollow Zero after her doomed Lyre Squad comrades asked Zoe to take her.

What is the song "Homecoming" in Trigger’s story?

It is a harmonica melody associated with Captain Charon and Lyre Squad. Trigger plays it for the dying Zoe after their confrontation.

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