Blue Archive Wiki
Blue Archive Wiki
Sensei! Welcome to Kivotos!
1,555
pages
in: Students, 3 Star, Trinity,
and 7 more

Kozeki Ui

Sign in to edit

“Can...can I go home now?”

~ Kozeki Ui

Kozeki Ui (古関ウイ) is one of the students studying in Trinity General School who wields a Sniper Rifle.

She is a head of the Library Committee.

Profile[]

Introduction[]

Ui, the head of the Library Book committee, has first-class knowledge and skills regarding old books, and is called "the magician of the antiquarian bookstore" by those around her. She usually stays in a place called "Antiquarian Bookstore" to decipher and manage old books...

Personality[]

An introvert misanthrope who prefers living a secluded and quiet life, away from other people and close with her books, or as she calls them, her daughters. Ui has an affinity towards reading and taking care of books. She is unfriendly towards strangers who come into her library, regardless of reason, and is usually quick to try to remove them. Unlike the average Trinity student who drinks tea, Ui prefers coffee, usually in the form of iced Americano.

Appearance[]

Ui has dark gray hair, reaching down to her knees, tied into a pair of twintails by violet blue ribbons. On the front, are several bangs. She wears a headband, which is also violet blue. Her eyes are yet again, violet blue. Her skin is pale.

Halo[]

Her halo is essentially a three-bordered, desert sand brown clock. The outmost border is thicker, and connected to the middle border at the four cardinal directions (or 3, 6, 9, and 12 o'clock) the two arms of the clock connected to a hollow circle in the middle, are pointing at 12, and 3 o'clock.

Uniform[]

She wears a white sailor styled uniform with a violet blue ribbon and knee-length skirt. Yellow lines are found along the collar, and one along the bottom of the skirt. She wears a black turtleneck-shirt, and black tights underneath. She has a necklace with a golden pendant. On top of this, Ui wears a desert sand brown knitted sweater with brown buttons, and two pockets which are open at the top.

Firearm[]

She uses a brown De Lisle Carbine with a bronze receiver and bolt. A leather wrapping is present on the stock where the Trinity logo is also imprinted on.

Combat[]

Skills[]

V • T • E Old Book Specialist Cost:5 > 4 > 3
  • LV01 ~ Decreases another ally's EX-Skill cost by a maximum of 50% (for up to 2 uses of the EX-Skill, rounding down). Also increases ATK by 10% (for 46 sec).
  • LV02 ~ Decreases another ally's EX-Skill cost by a maximum of 50% (for up to 2 uses of the EX-Skill, rounding down). Also increases ATK by 11.6% (for 46 sec).
  • LV03 ~ Decreases another ally's EX-Skill cost by a maximum of 50% (for up to 2 uses of the EX-Skill, rounding down). Also increases ATK by 13.1% (for 46 sec). Cost reduced to 4.
  • LV04 ~ Decreases another ally's EX-Skill cost by a maximum of 50% (for up to 2 uses of the EX-Skill, rounding down). Also increases ATK by 14.6% (for 46 sec). Cost reduced to 4.
  • LV05 ~ Decreases another ally's EX-Skill cost by a maximum of 50% (for up to 2 uses of the EX-Skill, rounding down). Also increases ATK by 16.1% (for 46 sec). Cost reduced to 3.

V • T • E Knowledge to be Passed On Skill Icons
  • LV01 ~ Increases CRIT.R by 13.6% for allies in a round-shaped area every 40 sec (33 sec).
  • LV02 ~ Increases CRIT.R by 14.3% for allies in a round-shaped area every 40 sec (33 sec).
  • LV03 ~ Increases CRIT.R by 15% for allies in a round-shaped area every 40 sec (33 sec).
  • LV04 ~ Increases CRIT.R by 17.7% for allies in a round-shaped area every 40 sec (33 sec).
  • LV05 ~ Increases CRIT.R by 18.4% for allies in a round-shaped area every 40 sec (33 sec).
  • LV06 ~ Increases CRIT.R by 19.1% for allies in a round-shaped area every 40 sec (33 sec).
  • LV07 ~ Increases CRIT.R by 21.8% for allies in a round-shaped area every 40 sec (33 sec).
  • LV08 ~ Increases CRIT.R by 22.5% for allies in a round-shaped area every 40 sec (33 sec).
  • LV09 ~ Increases CRIT.R by 23.2% for allies in a round-shaped area every 40 sec (33 sec).
  • LV10 ~ Increases CRIT.R by 25.9% for allies in a round-shaped area every 40 sec (33 sec).

V • T • E Specialist's Expertise Skill Icons
  • LV01 ~ Increases CRIT.R by 14%.
  • LV02 ~ Increases CRIT.R by 14.7%.
  • LV03 ~ Increases CRIT.R by 15.4%.
  • LV04 ~ Increases CRIT.R by 18.2%.
  • LV05 ~ Increases CRIT.R by 18.9%.
  • LV06 ~ Increases CRIT.R by 19.6%.
  • LV07 ~ Increases CRIT.R by 22.4%.
  • LV08 ~ Increases CRIT.R by 23.1%.
  • LV09 ~ Increases CRIT.R by 23.8%.
  • LV10 ~ Increases CRIT.R by 26.6%.

V • T • E Oversensitive Skill Icons
  • LV01 ~ Increases ATK SPD by 24.2% when using EX-Skills. Last for 20 sec.
  • LV02 ~ Increases ATK SPD by 25.4% when using EX-Skills. Last for 20 sec.
  • LV03 ~ Increases ATK SPD by 26.6% when using EX-Skills. Last for 20 sec.
  • LV04 ~ Increases ATK SPD by 31.4% when using EX-Skills. Last for 20 sec.
  • LV05 ~ Increases ATK SPD by 32.6% when using EX-Skills. Last for 20 sec.
  • LV06 ~ Increases ATK SPD by 33.8% when using EX-Skills. Last for 20 sec.
  • LV07 ~ Increases ATK SPD by 38.7% when using EX-Skills. Last for 20 sec.
  • LV08 ~ Increases ATK SPD by 39.9% when using EX-Skills. Last for 20 sec.
  • LV09 ~ Increases ATK SPD by 41.1% when using EX-Skills. Last for 20 sec.
  • LV10 ~ Increases ATK SPD by 45.9% when using EX-Skills. Last for 20 sec.


V • T • E Skill Status (Hover Over) Status Effect
EX-Skill Normal Passive Sub UE

⁠

Attack Up
Buff
Increase attack damage

⁠

Cost Decrease
Buff
Decrease the Cost of EX-Skill

⁠

Critical Rate Up
Buff
Increase the chance of landing a critical hit

⁠

Critical Rate Up
Buff
Increase the chance of landing a critical hit

⁠

Attack Speed Up
Buff
Increase the speed of Normal Attack and reloads

⁠

Critical Rate Up
Buff
Increase the chance of landing a critical hit

Growth Material[]

EX-SkillV • T • EGrowth Material
LV02
x12
x16
x80K
LV03
x12
x18
x13
x32
x500K
LV04
x12
x18
x8
x26
x3M
LV05
x8
x18
x7
x21
x10M

Other-Skills (Normal / Passive / Sub)V • T • EGrowth Material
LV02
x5
x5000
LV03
x8
x7500
LV04
x5
x12
x4
x60K
LV05
x8
x4
x13
x90K
LV06
x5
x12
x9
x19
x300K
LV07
x8
x3
x19
x450K
LV08
x8
x12
x4
x8
x1.5M
LV09
x12
x7
x13
x2.4M
LV10
x1
x4M

Unique Equipment[]

V • T • E Volume Suppressor (ボリュームサプレッサー) Firearm
⁠ A sniper rifle used by Ui when the her surrounding becomes too loud.
As the name suggests, it can make the target quiet.

V • T • E Limit Break Firearm
⁠ ⁠⁠ Passive skill enhanced to "Specialist's Expertise+"
⁠⁠⁠ ⁠ enhancement to ⁠
⁠⁠⁠⁠ Increases Explosion Effectiveness by 10%
⁠⁠⁠⁠⁠

V • T • E Stats Firearm
⁠ LV01 LV30 LV40 LV50 LV60 LV70
ATK 105 381 476 572 667 762
HP 538 1956 2445 2935 3424 3913
HEAL

172 625 782 938 1095 1251

V • T • E Specialist's Expertise+ Firearm
⁠
  • LV01 ~ Increases CRIT.R by 100. Also increases CRIT.R by 14%.
  • LV02 ~ Increases CRIT.R by 105. Also increases CRIT.R by 14.7%.
  • LV03 ~ Increases CRIT.R by 110. Also increases CRIT.R by 15.4%.
  • LV04 ~ Increases CRIT.R by 130. Also increases CRIT.R by 18.2%.
  • LV05 ~ Increases CRIT.R by 135. Also increases CRIT.R by 18.9%.
  • LV06 ~ Increases CRIT.R by 140. Also increases CRIT.R by 19.6%.
  • LV07 ~ Increases CRIT.R by 160. Also increases CRIT.R by 22.4%.
  • LV08 ~ Increases CRIT.R by 165. Also increases CRIT.R by 23.1%.
  • LV09 ~ Increases CRIT.R by 170. Also increases CRIT.R by 23.8%.
  • LV10 ~ Increases CRIT.R by 190. Also increases CRIT.R by 26.6%.

Unique Item[]

Kozeki Ui does not have Unique Item.

Bond[]

V • T • EAffection Rank BonusAffection
Sugar story
Memorial Lobby⁠⁠Total Stats ~ HP+1236 / ATK+125

LV02-05HP+19
LV06-10HP+28
LV11-15HP+37 / ATK+6
LV16-20HP+47 / ATK+7
LV21-30HP+12 / ATK+1
LV31-40HP+18 / ATK+2
LV41-50HP+30 / ATK+3

Poll[]

https://bluearchive.fandom.com/f/p/4400000000000034467

Trivia[]

  • The halo resembles a clock, which has arms of equal length. Both are aligned with no offset, meaning the clock reads 3:00 or 15:00. 3AM hes several meanings in christian religion, one being God sending messages to people, which relates to Ui's role as translator of ancient scriptures.
  • She is the only playable sniper student who uses pistol cartridges.
  • Due to her locking herself in the old library, there have been many memes and fanworks of her having very poor hygiene.
    • In fact, to further elaborate, her first name sounds very similar to the word "ewwy".

See Also[]

Kozeki Ui (Swimsuit ver.)⁠⁠⁠StrikerUi (Swimsuit)
MAX SKILL LEVEL
EX Move 4 allies within a round-shaped area around the user to the user's location and increases Penetration Effectiveness by 70.1% (45 sec). 4
N Obtain 3 Clues to increase the Penetration Effectiveness of Striker allies by 28.9% (30 sec). Consumes 3 Clues.
P Increases ATK by 26.6%.
Sub When an ally (other than the user) uses an EX-Skill 2 times, increases ATK by 43.1% (30 sec). Grants 1 Clue.

Navigation[]

V • T • E Student by Schools
⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠
⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠
⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠
⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠
⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠
⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠
⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠
⁠ ⁠⁠⁠⁠⁠⁠
⁠ ⁠⁠⁠⁠⁠⁠⁠⁠
⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠
⁠ ⁠⁠⁠
⁠ ⁠⁠⁠⁠⁠
⁠ ⁠⁠⁠⁠
V • T • E Student by Clubs
Abydos High School
Countermeasures Committee Hoshino • Shiroko • Shiroko Terror • Serika • Ayane • Nonomi
Event Variant Hoshino (Swimsuit) • Hoshino (Armed) • Shiroko (Riding) • Shiroko (Swimsuit) • Serika (New Year) • Serika (Swimsuit) • Ayane (Swimsuit) • Nonomi (Swimsuit)
Gehenna Academy
Pandemonium Society Makoto • Iroha • Ibuki • Satsuki • Chiaki
Disciplinary Committee Hina • Ako • Iori • Chinatsu
Handyman 68 Aru • Mutsuki • Kayoko • Haruka
Gourmet Research Society Haruna • Junko • Izumi • Akari
School Lunch Club Fuuka • Juri
Emergency Medicine Club Sena
Hot Spring Department Kasumi • Megu
Sparkle Club Kirara
Event Variant Hina (Swimsuit) • Hina (Dress) • Ako (Dress) • Iori (Swimsuit) • Chinatsu (Hot Spring) • Aru (New Year) • Aru (Dress) • Mutsuki (New Year) • Kayoko (New Year) • Kayoko (Dress) • Haruka (New Year) • Haruna (New Year) • Haruna (Gym) • Junko (New Year) • Izumi (Swimsuit) • Izumi (New Year) • Akari (New Year) • Fuuka (New Year) • Juri (Part Timer) • Sena (Casual)
Millennium Science School
Seminar Rio • Yuuka • Noa • Koyuki
Veritas Chihiro • Maki • Hare • Kotama
Cleaning&Clearing Neru • Asuna • Karin • Akane • Toki
Engineering Department Utaha • Hibiki • Kotori
Gym Training Department Sumire • Rei
Paranormal Affairs Dept Himari • Eimi
Game Development Dept Yuzu • Midori • Momoi • Alice
Event Variant Yuuka (Gym) • Yuuka (Pajamas) • Noa (Pajamas) • Maki (Camp) • Hare (Camp) • Kotama (Camp) • Neru (Bunny Girl) • Neru (Schoolgirl) • Asuna (Bunny Girl) • Asuna (Schoolgirl) • Karin (Bunny Girl) • Karin (Schoolgirl) • Akane (Bunny Girl) • Toki (Bunny Girl) • Utaha (Cheerleader) • Hibiki (Cheerleader) • Kotori (Cheerleader) • Sumire (Part Timer) • Eimi (Swimsuit) • Yuzu (Maid) • Midori (Maid) • Momoi (Maid) • Alice (Maid)
Trinity General School
Tea Party Nagisa • Seia • Mika
After-School Sweet Club Yoshimi • Natsu • Airi • Kazusa
Justice Realization Committee Tsurugi • Hasumi • Mashiro • Ichika
Knight Hospitaller Mine • Hanae • Serina
Supplementary Lesson Dept Hifumi • Azusa • Koharu • Hanako
Trinity Vigilante Reisa • Suzumi
Library Committee Ui • Shimiko
Sisterhood Sakurako • Mari • Hinata
Other Rabu
Event Variant Nagisa (Swimsuit) • Seia (Swimsuit) • Mika (Swimsuit) • Kazusa (Band) • Airi (Band) • Yoshimi (Band) • Natsu (Band) • Tsurugi (Swimsuit) • Hasumi (Gym) • Hasumi (Swimsuit) • Ichika (Swimsuit) • Mashiro (Swimsuit) • Mine (Idol) • Hanae (Christmas) • Serina (Christmas) • Hifumi (Swimsuit) • Azusa (Swimsuit) • Koharu (Swimsuit) • Hanako (Swimsuit) • Reisa (Magical) • Suzumi (Magical) • Ui (Swimsuit) • Sakurako (Idol) • Mari (Gym) • Mari (Idol) • Hinata (Swimsuit)
Hyakkiyako Alliance Academy
Yin-Yang Club Niya • Kaho • Chise
Hyakkaryouran Nagusa • Renge • Kikyou • Yukari
Festival Mgt Committee Shizuko • Pina • Umika
Etiquette Training Society Tsubaki • Mimori • Kaede
Ninjutsu Research Dept Michiru • Izuna • Tsukuyo
Other Wakamo
Event Variant Chise (Swimsuit) • Renge (Swimsuit) • Kikyou (Swimsuit) • Yukari (Swimsuit) • Shizuko (Swimsuit) • Pina (Guide) • Tsubaki (Guide) • Mimori (Swimsuit) • Izuna (Swimsuit) • Wakamo (Swimsuit)
Shanhaijing Senior Secondary School
Xuanlong Office Kisaki • Mina
Training Support Dept Shun • Kokona
Chinese Alchemy Study Club Saya
Xuanwu Merchant Association Rumi • Reijo
Event Variant Shun (Young) • Saya (Casual)
Red Winter Federal Academy
Red Winter Office Cherino • Tomoe • Marina
Public Workers Department Minori
Knowledge Liberation Front Meru • Momiji
No. 227 Special Class Nodoka • Shigure
Event Variant Cherino (Hot Spring) • Tomoe (Qipao) • Marina (Qipao) • Nodoka (Hot Spring) • Shigure (Hot Spring)
Valkyrie Police Academy
Public Safety Bureau Kanna
Life Safety Bureau Kirino • Fubuki
Event Variant Kanna (Swimsuit) • Kirino (Swimsuit) • Fubuki (Swimsuit)
SRT Special Academy
RABBIT Platoon Miyako • Saki • Moe • Miyu
Event Variant Miyako (Swimsuit) • Saki (Swimsuit) • Moe (Swimsuit) • Miyu (Swimsuit)
Arius Branch School
Arius Squad Saori • Atsuko • Misaki • Hiyori
Nicomedia Troop Subaru
Event Variant Saori (Swimsuit) • Saori (Dress) • Atsuko (Swimsuit) • Misaki (Swimsuit) • Hiyori (Swimsuit)
Highlander Railroad Academy
Central Control Center Hikari • Nozomi
Freight Transport Management Department Aoba
Wild Hunt Academy of Arts
Occult Research Society Eri • Kanoe
Free Trade Cartel Miyo • Ritsu • Fuyu
Others
Collaboration Hatsune Miku • Misaka Mikoto • Shokuhou Misaki • Saten Ruiko


Community content is available under CC-BY-SA unless otherwise noted.