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Main Stat: Physical / Psi Power
Yuri is a fast, mid-ranged agent who can close the distance to targets in a split-second, slash enemies, and deal additional attacks with her handgun and melee weapon. She discovered her Phase power only recently and is still largely untrained, but she uses UNION's standard tactics and equipments. She wants to be a regular agent more then anyone in the Black Lambs.

Blacklambs.png Yuri
Name FlagUS.png Yuri Seo
FlagKR.png Seo Yuri (서유리)
FlagJP.png Yuri Asuma (ユリ アスマ)
Class Ranger
Weapon Gun & Katana
Voice Actor FlagKR.png Park Seonyoung (박선영)
FlagJP.png Hondo Kaede (本渡 楓)
Age 18
Birthday May 17th, 2003
Weight 49 kg
Height 166 cm
Blood Type B
Hobbies Window shopping, Karaoke
T/NA FlagKR.png November 19th, 2014
FlagID.png May 19th, 2016
FlagUS.png November 10th, 2017
RA FlagKR.png January 15th, 2015
FlagID.png May 26th, 2016
FlagUS.png November 10th, 2017
SA FlagKR.png January 19th, 2017
FlagID.png September 28th, 2017
FlagUS.png May 22th, 2018

Combos & Special Movement

Combo Description
px px px px px px Slash once, twice, shoot two rounds, then shoot another two rounds. Afterwards, kick while moving forward and slash through the foe.
px px px px Start the combo by firing the gun.
px px px px px Run forward and do a slide kick, spin on your back, then slash past your foes.
px px Jump and slash downward.
px px px px px Jump into the air and preform an upwards slash, then slash past your foes.
Knocked Down px Recover from a knocked down state, knocking down nearby enemies.

Character Passive


Combat Instincts

Attack and Critical Damage's Physical/Magical rates will interchange with each other.

  • 30% of Physical Critical Damage/Raw Attack will be added onto Magical Critical Damage/Raw Attack.
  • 30% of Magical Critical Damage/Raw Attack will be added onto Physical Critical Damage/Raw Attack.

BLTeamIcon.png Teamwork

See the power of Yuri Seo!

Main Article: Teamwork Skills
Yuri's Teamwork Skill increases Attack Speed.



S0-1.png Empowered State: Yuri Level 1 (2 SP)
Cancel.png Cancel: Yuri Level 1 (2 SP)
Evade.png Combat Dodge Level 1 (1 SP)


RS1-1.PNG Rapid Fire Level 1 (2 SP)
RS1-2.PNG Supersonic Slash Level 1 (2 SP)
RS1-3.PNG Bullet Spray Level 2 (2 SP)
RS1-4.PNG Lunging Slash Level 4 (2 SP)
RS1-5.PNG Rank 1 Special Move: 5-Point Strike Level 7 (5 SP)

Character Passive : Novice Agent

Hidden Bonus

Physical / Psi Critical Damage +10%
(Actually 13% under the effects of Combat Instincts)

Novice Agent Promotion Exam

Level requirement: 19

  1. Talk to Inspector Chae (채미누) at Gangnam District.
  2. Talk to Ms. Kim (김유정) at Gangnam District.
    • Complete Yeoksam Ward on Skirmish Difficulty.
    • Report back to Ms. Kim.
  3. Talk to Ms. Kim.
  4. Gather Raindust.png Chromatic Phase Grain (무지개빛 차원의 티끌) x10
    • Report back to Ms. Kim.
  5. Talk to Ms. Kim.
    • Complete Times Square Atrium on Skirmish Difficulty with A Rank or higher.
    • Report back to Inspector Chae.
  6. Talk to Inspector Chae.
    • Complete Line 9 Station on Skirmish Difficulty.
    • Report back to Ms. Kim.


RS2-1.PNG Overhead Barrage Level 21 (2 SP)
RS2-2.PNG Roundhouse Slash Level 22 (2 SP)
RS2-3.PNG Spin-Kick Rapid Shot Level 23 (2 SP)
RS2-4.PNG Rank 2 Special Move: Blade Fury Level 24 (5 SP)
RS2-5.PNG Lightning Fast Level 30 (3 SP)


SP2-1.PNG Basic Attack Training Level 18 (2 SP)
SP2-2.PNG Reinforce Power Level 18 (2 SP)
SP2-3.PNG Critical Blow Level 18 (2 SP)
SP2-4.PNG Rate Manipulation Level 18 (2 SP)
SP2-5.PNG Material Penetration Level 18 (2 SP)
SP2-6.PNG Endurance Training Level 18 (2 SP)

Regular Agent Exam

Level requirement: 42

  1. Talk to Commander Song(송은이) at Gangnam Evac Center.
  2. Talk to Ms. Kim at Gangnam Evac Center.
    • Complete Cube once.
    • Report back to Ms. Kim.
  3. Talk to Ms. Kim.
    • Gather :
      • Rainessence.png Chromatic Phase Essence (무지개빛 차원의 정수) x7
      • Crack3.png
        Sticky Residue (확고한 차원의 균열) x5
        • Both items can be crafted.
    • Report to Sully (한석봉) at Guro Station.
  4. Talk to Sully.
  1. Talk to Jungmi.
  2. Talk to Ms. Kim.
    • Complete Cube once.
    • Report back to Ms. Kim.


RS3-1.PNG Superspeed Assault Level 41 (2 SP)
RS3-2.PNG Phase Flip Level 42 (2 SP)
RS3-3.PNG Suppressing Fire Level 43 (2 SP)
RS3-4.PNG Rank 3 Special Move: Power Lunge Level 44 (5 SP)


SP3-1.PNG Phase Armor Level 42 (2 SP)
SP3-2.PNG Barrier Level 42 (2 SP)
SP3-3.PNG Power Conditioning Level 42 (2 SP)
SP3-4.PNG Aerial Death Technique Level 42 (2 SP)
SP3-5.PNG Back Capture Level 42 (2 SP)
SP3-6.PNG Gazelle Type Level 42 (2 SP)
SP3-7.PNG Phase Force Detection Level 41 (2 SP)
SP3-8.PNG Forced Phase Force Enhancement Level 41 (2 SP)
SP3-9.PNG Critical Phase Force Level 41 (2 SP)
SP3-10.PNG Transcendental Power Level 41 (2 SP)
SP3-11.PNG Luck Buildup Level 41 (2 SP)
SP3-12.PNG Chasing Instinct Level 41 (2 SP)

Character Passive : Special Agent


Thousand-League Step

Yuri can now move more swiftly.
Using [EX Skills] decreases the skill cooldown of many skills by 1 second
(does not apply to [Lunging Slash], [EX Skills], or [Special Moves]).
Special Move: Invincible Yuri decreases the cooldown of other [Special Moves] by 10 seconds.

Increase the damage of [Lunging Slash], adds an additional attack, and increases the buff stats of Lunging Slash.

Special Agent Promotion Exam

Level requirement: 67

  1. Talk to Commander Song(송은이) at Sky Ship Bridge.
  2. Talk to Celine at Dimension Ops Center.
    • Clear Nightmare World (Horror / Terror) in Dimension Ops Center once.
  3. Talk to Celine at Dimension Ops Center.
    • Clear Promotion Test Program: Vites once.
  4. Talk to Celine at Dimension Ops Center.
    • Clear Promotion Test Program: Mephisto once.
  5. Talk to Celine at Dimension Ops Center.
    • Clear Promotion Test Program: Final Trial once.
  6. Talk to Celine at Dimension Ops Center.
    • Complete the following:
      • Clear Promotion Test Program: Final Trial once more.
      • Gather:
        • Crack3.png
          Sticky Residue (확고한 차원의 균열) x20
        • Bossdrop.png Alien Pressure Valve (반차원압 물질) x250
        • Rainessence.png Chromatic Phase Essence (무지개빛 차원의 정수) x200
    • Report back to Ms. Kim on Sky Ship Bridge.


RS4-1.PNG EX Rapid Fire Level 67 (3 SP)
RS4-2.PNG EX Bullet Spray Level 68 (3 SP)
RS4-3.PNG EX Phase Flip Level 69 (3 SP)
RS4-4.PNG Rank 4 Special Move: Invincible Yuri Level 70 (6 SP)

Awakened Skills

RS2-2.PNG Roundhouse Slash - Splendidly & Smoothly Level 80
(Requires Farem/Fanto Core)
RS1-2.PNG Supersonic Slash - Enforced Breakthrough Level 80
(Requires Purified Prisoner Trinket 3-set)
RS2-5.PNG Lightning Fast - Instant Level 80
(Requires Ominous Bird Desire Trinket 2-set)

Yuri was a pretty normal kid, growing up in a pretty average household - at least until she found out she had the makings of a CLOSER around the age of 15. This was quite unusual - the signs usually show up at a much earlier age. But even before Yuri's topological power manifested, she had been a national Kendo champion, trouncing the competition with her skills. Her physical acumen overshadows anyone else her age, which got her noticed and earned her spot in the Black Lambs project.

Unlike other members from the squad, who have been honing their skills from an early age, Yuri is still having trouble putting her abilities to use. As a result she fights with the aid of a specially designed protector and various firearms while she keeps progressing through her topological tests.

She's a cheerful and outgoing kid, and a little naive too. She signed up for the Black Lambs, convinced by promises that her work would land her a steady government job and that she wouldn't have to worry about ever going hungry.

The kendo girl who grew up in a normal environment, but had a late awakening to phase power

With normal family, and with normal life.
In a Kendo tournament that she had set out to claim the prize money, she had won.
However, the judge disqualified her, and took the prize away.
When Yuri confronted the judge for his decision, the answer was given.
The final blow that decided her victory- there was "Phase Power" with it.

In order to attain her vague dreams, Yuri simply slashes and shoots away.

Although the dream of winning the Kendo tournament was lost,
She joined Black Lambs with her new dreams of becoming a civil agent.
However, being a Closer wasn't all nicely cut and clean as she expected.
With series of many missions that she had not expected,
UNION grants her a chance for a promotion.

Despite the chance to become the civil agent that she had dreamed for, a hesitation swells up in her heart.

Will Seo Yuri be able to cut her hesitation away and become an Official Agent?


  • Yuri's dance emote is from Apink's No No No.
  • Originally, Yuri's voice actress was cast by Seo Yu-ri, the same name as the character's name. According to developer's twitter, they announced that "it was merely a coincidence." But before the Pre-OBT launch date, she was replaced by the current voice actress.
  • Despite being third in the official character roster, Yuri received her Official Agent class second.
  • Yuri's Japanese voice actor is originally Touyama Nao, but it was changed to Hondo Kaede on October 2017 with consideration for an anime adaptation.

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