Yui
Intelligence Division's Wildcard
Cost: 07
Profile
Backstory
Matsumoto Yui grew up in a peaceful, ordinary home—surrounded by warmth, stability, and love. For as long as she could remember, her dream had been simple: to one day build a quiet, happy family of her own.
But fate had other plans. Born with a rare psionic gift, Yui couldn’t remain in the background for long. As the Rift Crisis worsened, her abilities made her a natural fit for the Bureau of Rift Management. She rose quickly through the ranks as an Esper agent of Discover, carrying out her duties with calm precision and quiet excellence. Yet her talent came at a price.
Her success was often unacknowledged—her accomplishments claimed by those above her. And then came the worst of them: Secretary So Joo-hee. Under her, Yui was left to manage the Intelligence Division nearly alone. Even so, she endured.
Now, assigned to the command of the Human God—someone unlike any superior she’s ever known—Yui is slowly beginning to believe in something more. That maybe her strength doesn’t have to come at the cost of isolation. That maybe, in this strange new world... her long-held dream is no longer out of reach.
Basic Stats
Strength:
7
Technic:
14
Intelligence:
9
Vitality:
8
Agility:
11
Key Stats
89
166
122
896
88
124
111
105
128
10
150
Recomended Stigmatas
4pc: When using basic/normal attack, increases Critical Chance by 7% for 3 rounds. (Stacks up to 5 times)
4pc: Increases Critical Chance by 20%. This effect is removed if the character moves.
(Ex3/Ex6 Nuke Build)
4pc: When hitting weakness of the target, increases Slash, Pierce, and Crush Boost by 40% each for that attack.
Yui's arrival reshapes the ranged DPS meta — she becomes the strongest ranged attacker in the game, taking the crown from Nari.
Her kit revolves around summoning controllable guns (3 summons, up to 4 at max level). Each summon consumes all its AP when attacking and has a 50% chance to reduce Yui's ultimate cooldown by 1. Since she starts with a 3-turn cooldown, there’s a 31.25% chance her ultimate will be ready after the 4 summons' first attacks.
If not, her basic attack boosts her summons’ AP by 200, allowing them to attack again — giving an 85.55% chance to unlock her ultimate after their second attacks.
Don't underestimate her summons’ damage — they inherit 100% of Yui’s stats (Crit Rate, Crit Damage, Ranged Attack, Accuracy,ACC and Pierce) except for HP, which is only 30% of hers, making them very fragile But they dish out some big numbers.
Her ultimate has a wide AoE range and, unlike Everett’s ultimate, she can target enemy weak spots regardless of their direction. This makes it one of the hardest-hitting ults in the game. However, it has a random trigger based on her Technic base stat:
at EX0, Yui has 17 Technic, and each point above 15 grants a 10% chance to trigger a weak spot hit (level 10) — that’s 2 × 10% = 20% chance. With her signature weapon, this chance doubles to 40%.
The chance increases with EX levels:
- EX1: 60%
- EX3: 80%
- EX6: 100% (guaranteed weak spot hit)
EX3 is an efficient stopping point, while EX6 makes her one of the rare units in the game that benefit more from character dupes than weapon upgrades. That said, weapon dupes still offer a solid damage boost to her overall DPS.
- Best-in-slot Stigmata – The Four Horsemen: Provides high Crit DMG and stacks up to 35% Crit Rate through normal attacks, reducing the need for Crit Rate substats.
- Alternative – The Thousand Mile Weaver (4-piece): Excellent for nuke builds if you have EX3 or EX6. Grants 17.5% Crit Rate from the main stats. While the 2-piece bonus is irrelevant for Yui, the 4-piece bonus is perfect — it gives +40% Pierce Bonus when landing a weak spot attack (guaranteed at EX6).
- The Noble's Tactics (4-piece): A solid backup if you can’t farm EX set pieces.
Recommended Sub Stats: Crit Rate (aim for a 1:2 Crit Rate to Crit Damage ratio) > Crit Damage > Ranged Attack > Anything else.
Recommended Teams
Yui's best teams generally require premium support units to unlock her full potential — namely Juha, So Joo-hee, Mahari, and Famenne... These characters enhance her uptime, survivability, and overall damage output.
You will notice she's replacing Yvonna in certain compositions, especially in Special Operations or in the future stages where countermeasures against Yvonna-based teams might be introduced.
Below are examples of some of Yui’s top-performing team setups. I’ll update this section with more optimized teams after further testing:
Yui-Juha Team
Other Variations
Yvonna Team
Gifts
Terrarium
+50 Favorability
Training Equipment Set
+20 Favorability
Americano Voucher
+20 Favorability
Skills
Pistol Fire
Calmly shoots at the target. Deals Pierce DMG equal to 60% of Range ATK.
Conceal
When attacking an enemy’s weak point, uses optical camouflage to hide. Once per round, has a 20% chance to gain [Conceal: Stealth] upon a weakness attack. The activation chance increases by 1% for every 1% of current lost HP.
- [Conceal: Stealth]: Becomes hidden and cannot be targeted by enemy skills. SPD decreases by 20% and ACC increases by 50% for the first attack while hidden.
Bullet Battalion
Throws a deployment box forward, summoning 3 player-controllable units of [Summon: Bullet Battalion]. All previously existing [Summon: Bullet Battalion] units will be deactivated upon summoning.
- [Summon: Bullet Battalion]:
Base Max HP: 30% of the caster’s base stat
Base Range ATK: 100% of the caster’s base stat
Base CRIT Rate: 100% of the caster’s base stat
Base CRIT DMG: 100% of the caster’s base stat
Base ACC: 100% of the caster’s base stat
Base Pierce Boost: 100% of the caster’s base stat
Base SPD: Fixed stat 61
Base AP Recovery: Fixed stat 0
Base AP upon Summon: Fixed stat 200
Skills: 'Bullet Battalion - Gunfire,' 'Bullet Battalion - Overload,' 'Standby'
Kinetic Jump
Harness telekinesis to leap skyward, landing precisely at the chosen spot.
Anarchic Barrage
Unleashes a telekinetic barrage of pistols, scorching a wide area. This skill has an initial cooldown of 3 rounds. Deals Pierce DMG equal to 250% of Range ATK to all enemies within the area. For each target hit, regardless of direction, there is a 1% chance per point of the user’s Technic stat exceeding 15 to trigger a Weak Point Attack.
Spectral Lock-on
When performing a Basic ATK, grants all [Summon: Bullet Battalion] units on the field the [Calibration] effect for 1 round. Each time a [Summon: Bullet Battalion] lands a successful Basic ATK, there is a 50% chance to reduce the cooldown of Anarchic Barrage by 1 round.
- [Calibration]: Gains 200 AP and 10% Crit DMG. Cannot gain this effect again while it is active.
Skills Priority
To get the most out of Yui, you should prioritize leveling her Bullet Battalion skill first, as it unlocks up to four controllable summons, which are core to her playstyle. After that, focus on her Ultimate: Anarchic Barrage her biggest source of dammage.
Once those are maxed, you can invest in Spectral Lock-on to boost her summons' damage output.
If you're planning to use Yui as your main carry or in solo/boss content when there's no need for her aoe nukes, leveling her Basic Attack is also worthwhile since it increases her summons’ AP and contributes to their uptime and deals dammage.
Kinetic Jump can be helpful situationally for repositioning or closing gaps. Finally, you can level Conceal, but keep in mind that it doesn't boost her damage and is mainly for survivability.
1st Skill: Bullet Battalion
Optimal level : 2
2nd Skill: Anarchic Barrage
Optimal level : +7
3rd Skill: Spectral Lock-on
Optimal level : +5
4th Skill: Kinetic Jump
Optimal level : +3
5th Skill: Pistol Fire
Optimal level : 6
6th Skill: Conceal
Optimal level : +3
Recommended Traits
Make sure to use Soul Stones to remmove Rational trait it's useless for her.
Character Gallery
Yui
Yui Skin
Yui profile
Weapon
Phantom Stiletto
Main Stats
Weapon Firing Attack Power 12.1 (77)
Sub Stats
Critical Chance 7.7% (49%)
Effect
Lock-on from Beyond
Increases Pierce Boost by 20% (40%) during combat. On attack, gain the [Keen Lock-on] effect, applied only to that attack.
- [Keen Lock-on]: For every ally on battlefield (Max 8 allies & excluding herself), Increases Crit DMG and Ranged ATK by 6% (10%) for each ally [As max bonus would be 48% (80%)].
Exclusive Skill
Yui Exclusive: Soul Resonance
During battle, increases Basic ATK DMG of both the user and thier summons by 16%.
The Weakness Hit chance triggered by the [Anarchic Barrage] skill is doubled. When [Anarchic Barrage] target 2 of fewer enemies:
- Against 2 enemies: temporarily increases Combat Skill DMG by 18% and restores 12 AP.
- Against 1 enemies: temporarily increases Combat Skill DMG by 36% and restores 24 AP.
