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Sena (Casual)

Gehenna Academy

Sena (Casual)

★★★

/Sonic/Healer

Atier

Introduction

Sena (Casual) is a 3-star Sonic student in Blue Archive. Sena (Casual)'s role is Healer. School: Gehenna Academy.

On the Blue Archive tier list Sena (Casual) is A tier, 58th of the 242 students ranked.

Other Sonic students in Blue Archive: Aoba, Atsuko (Swimsuit), Chiaki, Eri, Erika, Fuyu and 31 more.

What Sena (Casual) does

An area healer: her EX sets up a 32-second heal-over-time for every ally in a circle. Every 40 seconds she raises her own Healing and Attack Speed for 30 seconds, and her normal attacks splash wider at reduced damage.

Sena (Casual) in raids

On the raids usage list Sena (Casual) is D tier, 110th of 264: brought by 1.1% of ranked Global players to the last 8 raids, on average.

  • Raid usage1.09%

By raid, newest first

  • Hod (Indoor)0.8%
  • Gregorius (Indoor)0.3%
  • Hovercraft (Outdoor)0.2%
  • Drumbarka (Street)0%
  • Myouki Kurokage (Street)5.9%
  • KAITEN FX Mk.0 (Street)0.2%
  • Perorodzilla (Outdoor)1.2%
  • Goz (Outdoor)0.1%

Sena (Casual)'s banners

All banners
  • 5 August 2025 to 19 August 2025Pick-Up Recruitment

Profile

Sena chose this casual outfit for her day off.

Even when she's off duty, she does not forget about her mission as the president of Medical Emergency Club. However, she secretly hopes for a change of pace. Gehenna's Medical Emergency Club president expresses her curiosity with a lighter mood than usual.

Sena (Casual)'s full name is Himuro Sena. Sena (Casual)'s birthday is April 7th, and Sena (Casual) stands 5'1" tall. Sena (Casual) is voiced by 大西沙織 in Japanese and Kang Eunae in Korean. Sena (Casual)'s hobby is being on standby and organizing medicine. イコモチ drew Sena (Casual).

Stats

  • Max HP65th29,897
  • ATK15th5,283
  • DEF116th134
  • Healing23rd8,707
  • Accuracy230th102
  • Evasion267th136
  • Crit167th205
  • Crit DMG200%
  • Stability241st972
  • Normal Attack Range147th650
  • 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: 2,729Level 90, 3 stars: 24,804Level 90, 5 stars: 29,897
  • ATKLevel 1, 3 stars: 463Level 90, 3 stars: 4,213Level 90, 5 stars: 5,283
  • DEFLevel 1, 3 stars: 24Level 90, 3 stars: 134Level 90, 5 stars: 134
  • HealingLevel 1, 3 stars: 2,530Level 90, 3 stars: 7,080Level 90, 5 stars: 8,707
  • AccuracyLevel 1, 3 stars: 102Level 90, 3 stars: 102Level 90, 5 stars: 102
  • EvasionLevel 1, 3 stars: 136Level 90, 3 stars: 136Level 90, 5 stars: 136
  • CritLevel 1, 3 stars: 205Level 90, 3 stars: 205Level 90, 5 stars: 205
  • 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: 972Level 90, 3 stars: 972Level 90, 5 stars: 972
  • Normal Attack RangeLevel 1, 3 stars: 650Level 90, 3 stars: 650Level 90, 5 stars: 650
  • 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: 1Level 90, 3 stars: 1Level 90, 5 stars: 1
  • 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
Middle
Attack type
Sonic
Armor type
Heavy
Weapon
Grenade launcher
School
Gehenna Academy
Club
Medical Emergency Club
Year and age
3rd Year, 17 years old
Equipment slots
Gloves, Hairpin, Necklace

Terrain affinity

  • UrbanS (SS with the weapon at 3 stars)
  • OutdoorB
  • IndoorD

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

Skills

5

  • Emergency Support

    EX Skill · Cost 5
    Level

    Continuously recovers 53% of Healing as HP for allies in a circular area (for 32 sec).

  • Medic's Resupply

    Basic Skill
    Level

    Increases Healing by 35.3% and ATK SPD by 35.3% (for 30 sec) every 40 sec.

  • Vigilant Break

    Enhanced Skill
    Level

    Increases ATK by 26.6%.

  • Vigilant Break+

    Enhanced Skill +
    Level

    Increases Healing by 1637. Also increases ATK by 26.6%.

    Replaces Vigilant Break once Sena (Casual)'s Exclusive Weapon reaches 2 stars.

  • Heaven of Curiosity

    Sub Skill
    Level

    Increases normal attack range radius by 2 times and now deals 83.8% of ATK as damage.

Exclusive Weapon

Upgrade planner

Portable Emergency Kit

Grenade launcher

Sena's compact grenade launcher. Even on its days off, its functionality remains unchanged.

  • 1 starLv. 30: ATK +607, Max HP +2,547, Healing +920
  • 2 starsLv. 40: ATK +758, Max HP +3,184, Healing +1,150Enhanced Skill becomes Vigilant Break+
  • 3 starsLv. 50: ATK +910, Max HP +3,821, Healing +1,380Urban affinity S to SS
  • 4 starsLv. 60: ATK +1,062, Max HP +4,458, Healing +1,611Sonic 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

Sena (Casual) starts at 3 stars. Each star also lifts the Relationship Rank cap.

Relationship Rank bonus

  • 5Total bonus: Healing +24
  • 10Total bonus: Healing +74
  • 15Total bonus: Healing +139, ATK +45
  • 20Total bonus: Healing +219, ATK +100
  • 25Total bonus: Healing +234, ATK +110
  • 30Total bonus: Healing +249, ATK +120
  • 35Total bonus: Healing +279, ATK +135
  • 40Total bonus: Healing +309, ATK +150
  • 45Total bonus: Healing +359, ATK +170
  • 50Total bonus: Healing +409, ATK +190

Stats stop growing at rank 50.

Talents

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

Gifts Sena (Casual) likes

5

Favourites

  • Cosplayer Coke-Bottle Glasses
  • Encyclopedia
  • Extravagant Gilded Jar of Greed
  • Health Food Supplement
  • Potted Bug-Eating Plant

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

Lines and Memorial Lobby

When recruited: Reporting that I am off duty today.

MomoTalk status: I'm off today.

Sena (Casual)'s Recollection Lobby
Sena (Casual)'s Recollection Lobby

Upgrade costs

Open in the planner

EX Skill

  • Lv. 2Credit Points ×80,000Beginner Tactical Training Blu-ray (Gehenna) ×12Golden Fleece ×17
  • Lv. 3Credit Points ×500,000Normal Tactical Training Blu-ray (Gehenna) ×12Beginner Tactical Training Blu-ray (Gehenna) ×18Golden Yarn ×15Aether Dust ×31
  • Lv. 4Credit Points ×3,000,000Advanced Tactical Training Blu-ray (Gehenna) ×12Normal Tactical Training Blu-ray (Gehenna) ×18Golden Wool ×9Aether Piece ×27
  • Lv. 5Credit Points ×10,000,000Superior Tactical Training Blu-ray (Gehenna) ×8Advanced Tactical Training Blu-ray (Gehenna) ×18Golden Dress ×10Aether Shard ×17

Basic, Enhanced and Sub Skills

  • Lv. 2Credit Points ×5,000Beginner Tech Notes (Gehenna) ×5
  • Lv. 3Credit Points ×7,500Beginner Tech Notes (Gehenna) ×8
  • Lv. 4Credit Points ×60,000Normal Tech Notes (Gehenna) ×5Beginner Tech Notes (Gehenna) ×12Golden Fleece ×6
  • Lv. 5Credit Points ×90,000Normal Tech Notes (Gehenna) ×8Golden Yarn ×5Aether Dust ×12
  • Lv. 6Credit Points ×300,000Advanced Tech Notes (Gehenna) ×5Normal Tech Notes (Gehenna) ×12Golden Yarn ×8Aether Dust ×19
  • Lv. 7Credit Points ×450,000Advanced Tech Notes (Gehenna) ×8Golden Wool ×4Aether Piece ×16
  • Lv. 8Credit Points ×1,500,000Superior Tech Notes (Gehenna) ×8Advanced Tech Notes (Gehenna) ×12Golden Dress ×5Aether Shard ×11
  • Lv. 9Credit Points ×2,400,000Superior Tech Notes (Gehenna) ×12Golden Dress ×7Aether Shard ×13
  • Lv. 10Credit Points ×4,000,000Secret Tech Notes ×1

Star promotion

  • 4 starsCredit Points ×200,000Sena (Casual)'s Eleph ×100
  • 5 starsCredit Points ×1,000,000Sena (Casual)'s Eleph ×120

Exclusive Weapon

  • 2 starsCredit Points ×1,000,000Sena (Casual)'s Eleph ×120
  • 3 starsCredit Points ×1,500,000Sena (Casual)'s Eleph ×180
  • 4 starsCredit Points ×2,000,000Sena (Casual)'s Eleph ×200

Talent: Max HP

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

Talent: ATK

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

Talent: Healing

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

Art

Sena (Casual) key art

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