Menu

Next launch

Petit PlanetIn 21 daysGlobal

Latest codesAll

Atsuko

Arius Branch School

Atsuko

★★★

/Explosive/Tank

Atier

Introduction

Atsuko is a 3-star Explosive student in Blue Archive. Atsuko's role is Tank. School: Arius Branch School.

On the Blue Archive tier list Atsuko is A tier, 39th of the 242 students ranked.

Other Explosive students in Blue Archive: Airi, Airi (Band), Akane (School), Akari, Ako (Dress), Aru and 85 more.

What Atsuko does

A healer who works in zones: her EX heals every ally near her every 5 seconds for 30 seconds. Every 30 seconds she also lays down smoke that raises the Evasion of allies inside it by up to 39.1%, so the team dodges more while the heals tick.

Atsuko in raids

On the raids usage list Atsuko is C tier, 48th of 264: brought by 5.4% of ranked Global players to the last 8 raids, on average.

  • Raid usage5.39%

By raid, newest first

  • Hod (Indoor)3.2%
  • Gregorius (Indoor)0.7%
  • Hovercraft (Outdoor)4.7%
  • Drumbarka (Street)1.3%
  • Myouki Kurokage (Street)23%
  • KAITEN FX Mk.0 (Street)7.3%
  • Perorodzilla (Outdoor)1.4%
  • Goz (Outdoor)1.6%

Atsuko's banners

All banners
  • 7 October 2025 to 14 October 2025Pick-Up Recruitment
  • 16 July 2024 to 23 July 2024Pick-Up Recruitment
  • 3 January 2023 to 17 January 2023Pick-Up Recruitment

Profile

A mysterious member of the Arius Squad who always wears a gas mask. Atsuko's mask isn't necessarily meant for disguise but rather a gas mask she wears for protection and safety. The squad leader, Saori, calls her Hime. Very little is known of who she is.

Atsuko's full name is Hakari Atsuko. Atsuko's birthday is January 20th, and Atsuko stands 5'2" tall. Atsuko is voiced by 花澤香菜 in Japanese and Kim Seonghwa in Korean. Atsuko's hobby is gardening. 9ml drew Atsuko.

Stats

  • Max HP13th56,203
  • ATK249th1,903
  • DEF103rd152
  • Healing115th6,127
  • Accuracy194th108
  • Evasion6th1,321
  • Crit111th216
  • Crit DMG200%
  • Stability186th1,284
  • Normal Attack Range246th350
  • Cost Recovery700

At level 90 and 5 stars, before the Exclusive Weapon, equipment, Talents and Relationship Rank. Each bar is measured against the highest value in the Blue Archive roster, and the place is out of every student with that stat.

At level 1 and 90

  • Max HPLevel 1, 3 stars: 3,082Level 90, 3 stars: 46,628Level 90, 5 stars: 56,203
  • ATKLevel 1, 3 stars: 166Level 90, 3 stars: 1,518Level 90, 5 stars: 1,903
  • DEFLevel 1, 3 stars: 27Level 90, 3 stars: 152Level 90, 5 stars: 152
  • HealingLevel 1, 3 stars: 1,781Level 90, 3 stars: 4,982Level 90, 5 stars: 6,127
  • AccuracyLevel 1, 3 stars: 108Level 90, 3 stars: 108Level 90, 5 stars: 108
  • EvasionLevel 1, 3 stars: 1,321Level 90, 3 stars: 1,321Level 90, 5 stars: 1,321
  • CritLevel 1, 3 stars: 216Level 90, 3 stars: 216Level 90, 5 stars: 216
  • Crit ResLevel 1, 3 stars: 100Level 90, 3 stars: 100Level 90, 5 stars: 100
  • Crit DMGLevel 1, 3 stars: 200%Level 90, 3 stars: 200%Level 90, 5 stars: 200%
  • Crit DMG ResLevel 1, 3 stars: 50%Level 90, 3 stars: 50%Level 90, 5 stars: 50%
  • StabilityLevel 1, 3 stars: 1,284Level 90, 3 stars: 1,284Level 90, 5 stars: 1,284
  • Normal Attack RangeLevel 1, 3 stars: 350Level 90, 3 stars: 350Level 90, 5 stars: 350
  • CC PowerLevel 1, 3 stars: 100Level 90, 3 stars: 100Level 90, 5 stars: 100
  • CC ResLevel 1, 3 stars: 100Level 90, 3 stars: 100Level 90, 5 stars: 100
  • Recovery BoostLevel 1, 3 stars: 100%Level 90, 3 stars: 100%Level 90, 5 stars: 100%
  • Cost RecoveryLevel 1, 3 stars: 700Level 90, 3 stars: 700Level 90, 5 stars: 700
  • Mag CountLevel 1, 3 stars: 15Level 90, 3 stars: 15Level 90, 5 stars: 15
  • DEF PenetrationLevel 1, 3 stars: 0Level 90, 3 stars: 0Level 90, 5 stars: 0
  • MobilityLevel 1, 3 stars: 200Level 90, 3 stars: 200Level 90, 5 stars: 200

Before the Exclusive Weapon, equipment, Talents and Relationship Rank. Stars raise ATK, Max HP and Healing only.

Combat profile

Squad
Striker (fights on the field)
Position
Front
Attack type
Explosive
Armor type
Special
Weapon
Submachine gun
School
Arius Branch School
Club
Arius Squad
Year and age
1st Year, 15 years old
Equipment slots
Shoes, Badge, Necklace

Terrain affinity

  • UrbanB
  • OutdoorD
  • IndoorS (SS with the weapon at 3 stars)

Affinity sets how well a student fights on each stage type, from D up to SS.

Skills

5

  • Is This My Power...?

    EX Skill · Cost 4
    Level

    Recovers 53.9% of Healing as HP for allies in a circular area around the user (for 30 sec) every 5 sec.

  • Let's Hide

    Basic Skill
    Level

    Increases Evasion of allies in the area by 39.1% by detonating a smoke bomb on the user's position (for 20 sec) every 30 sec (effect maintained only while within range).

  • Practice Makes Perfect

    Enhanced Skill
    Level

    Increases Evasion by 26.6%.

  • Practice Makes Perfect+

    Enhanced Skill +
    Level

    Increases Healing by 1152. Also increases Evasion by 26.6%.

    Replaces Practice Makes Perfect once Atsuko's Exclusive Weapon reaches 2 stars.

  • High Pain Tolerance

    Sub Skill
    Level

    Increases Evasion by 45.9% when HP is 30% or lower.

Exclusive Weapon

Upgrade planner

Scorpius

Submachine gun

A submachine gun Atsuko uses. It has strong firepower and a short barrel, making it suitable for close combat.

  • 1 starLv. 30: ATK +218, Max HP +4,740, Healing +648
  • 2 starsLv. 40: ATK +273, Max HP +5,925, Healing +809Enhanced Skill becomes Practice Makes Perfect+
  • 3 starsLv. 50: ATK +328, Max HP +7,110, Healing +971Indoor affinity S to SS
  • 4 starsLv. 60: ATK +382, Max HP +8,296, Healing +1,133Explosive damage +10%

Stars and Relationship Rank

Star bonuses

  • 4 starsBonus over 1 star: ATK +14%, Max HP +9%, Healing +12%Rank cap: 30
  • 5 starsBonus over 1 star: ATK +31%, Max HP +23%, Healing +27%Rank cap: 100

Atsuko starts at 3 stars. Each star also lifts the Relationship Rank cap.

Relationship Rank bonus

  • 5Total bonus: Healing +20
  • 10Total bonus: Healing +55
  • 15Total bonus: Healing +100, Max HP +575
  • 20Total bonus: Healing +155, Max HP +1,265
  • 25Total bonus: Healing +170, Max HP +1,385
  • 30Total bonus: Healing +185, Max HP +1,505
  • 35Total bonus: Healing +205, Max HP +1,685
  • 40Total bonus: Healing +225, Max HP +1,865
  • 45Total bonus: Healing +260, Max HP +2,165
  • 50Total bonus: Healing +295, Max HP +2,465

Stats stop growing at rank 50.

Talents

  • Max HP25 levels, up to +5%
  • ATK25 levels, up to +5%
  • Healing25 levels, up to +5%

Gifts Atsuko likes

2

Favourites

  • Encyclopedia
  • Health Food Supplement

A gift gives more Relationship Rank EXP the more of Atsuko's favourite-item tags it carries. Gifts not listed still give the base amount.

Lines and Memorial Lobby

When recruited: I wish there were flowers on this path.

MomoTalk status: I've been learning the language of flowers lately.

Atsuko's Recollection Lobby
Atsuko's Recollection Lobby

Upgrade costs

Open in the planner

EX Skill

  • Lv. 2Credit Points ×80,000Beginner Tactical Training Blu-ray (Arius) ×12Aether Dust ×12
  • Lv. 3Credit Points ×500,000Normal Tactical Training Blu-ray (Arius) ×12Beginner Tactical Training Blu-ray (Arius) ×18Aether Piece ×11Nimrud Lens Piece ×29
  • Lv. 4Credit Points ×3,000,000Advanced Tactical Training Blu-ray (Arius) ×12Normal Tactical Training Blu-ray (Arius) ×18Aether Shard ×7Broken Nimrud Lens ×23
  • Lv. 5Credit Points ×10,000,000Superior Tactical Training Blu-ray (Arius) ×8Advanced Tactical Training Blu-ray (Arius) ×18Aether Essence ×9Damaged Nimrud Lens ×20

Basic, Enhanced and Sub Skills

  • Lv. 2Credit Points ×5,000Beginner Tech Notes (Arius) ×5
  • Lv. 3Credit Points ×7,500Beginner Tech Notes (Arius) ×8
  • Lv. 4Credit Points ×60,000Normal Tech Notes (Arius) ×5Beginner Tech Notes (Arius) ×12Aether Dust ×4
  • Lv. 5Credit Points ×90,000Normal Tech Notes (Arius) ×8Aether Piece ×4Nimrud Lens Piece ×13
  • Lv. 6Credit Points ×300,000Advanced Tech Notes (Arius) ×5Normal Tech Notes (Arius) ×12Aether Piece ×8Nimrud Lens Piece ×18
  • Lv. 7Credit Points ×450,000Advanced Tech Notes (Arius) ×8Aether Shard ×3Broken Nimrud Lens ×16
  • Lv. 8Credit Points ×1,500,000Superior Tech Notes (Arius) ×8Advanced Tech Notes (Arius) ×12Aether Essence ×4Damaged Nimrud Lens ×8
  • Lv. 9Credit Points ×2,400,000Superior Tech Notes (Arius) ×12Aether Essence ×6Damaged Nimrud Lens ×14
  • Lv. 10Credit Points ×4,000,000Secret Tech Notes ×1

Star promotion

  • 4 starsCredit Points ×200,000Atsuko's Eleph ×100
  • 5 starsCredit Points ×1,000,000Atsuko's Eleph ×120

Exclusive Weapon

  • 2 starsCredit Points ×1,000,000Atsuko's Eleph ×120
  • 3 starsCredit Points ×1,500,000Atsuko's Eleph ×180
  • 4 starsCredit Points ×2,000,000Atsuko's Eleph ×200

Talent: Max HP

  • Lv. 1-5Credit Points ×500,000Aether Dust ×50Physical Education Workbook ×10
  • Lv. 6-10Credit Points ×500,000Aether Dust ×75Physical Education Workbook ×10
  • Lv. 11-15Credit Points ×500,000Aether Dust ×100Physical Education Workbook ×10
  • Lv. 16-20Credit Points ×1,000,000Aether Piece ×30Physical Education Workbook ×20
  • Lv. 21-25Credit Points ×1,000,000Aether Piece ×40Physical Education Workbook ×20

Talent: ATK

  • Lv. 1-5Credit Points ×500,000Aether Dust ×50Shooting Workbook ×10
  • Lv. 6-10Credit Points ×500,000Aether Dust ×75Shooting Workbook ×10
  • Lv. 11-15Credit Points ×500,000Aether Dust ×100Shooting Workbook ×10
  • Lv. 16-20Credit Points ×1,000,000Aether Piece ×30Shooting Workbook ×20
  • Lv. 21-25Credit Points ×1,000,000Aether Piece ×40Shooting Workbook ×20

Talent: Healing

  • Lv. 1-5Credit Points ×500,000Aether Dust ×50Hygiene Workbook ×10
  • Lv. 6-10Credit Points ×500,000Aether Dust ×75Hygiene Workbook ×10
  • Lv. 11-15Credit Points ×500,000Aether Dust ×100Hygiene Workbook ×10
  • Lv. 16-20Credit Points ×1,000,000Aether Piece ×30Hygiene Workbook ×20
  • Lv. 21-25Credit Points ×1,000,000Aether Piece ×40Hygiene Workbook ×20

Art

Atsuko key art

More Explosive students

All students