Blue Archive · student

Serina (Christmas)

Serina (Christmas)セリナ（クリスマス）세리나(크리스마스)

★★★◈Pierce Special ✦Supporter Striker Trinity Middle AR Standard

Unchanged since July 18, 2026

LV.90

Combat

UrbanDOutdoorSIndoorB

Stats · Lv.90 Stats at any level →

HP20,750

ATK2,307

DEF99

Heal5,035

Crit218

Crit DMG200%

Crit RES100

Stability1,268

Accuracy765

Evasion724

Range650

DEF Pen0

CC Power100

CC RES100

Ammo15

Ammo cost3

Move Speed200

Heal Effectiveness10,000

Skills

Echo of BlessingsEX Skill · Cost 4 · Lv.5

Increases Crit DMG by 43.5% for allies, other than the user, in a circular area (for 50 sec). Accumulates 1 Holy Night's Blessing (stacks up to 15 times.) Increases Piercing Effectiveness by 3.7% multiplied by the number of Holy Night's Blessings (for 50 sec).

Drag to see per-level scaling

Assorted Gift Set CBasic Skill · Lv.10

Throws gifts to allies, other than the user, in a circular area every 21 normal attacks (for 30 sec). Green Box: Increases Crit DMG by 21% Red Box: Increases Crit DMG by 24% Teddy Bear: Increases Crit DMG by 27%.

Drag to see per-level scaling

Guardian Angel's Will+Enhanced Skill · Lv.10

Increases DEF by 380. Also increases Max HP by 26.6%.

Drag to see per-level scaling

Holy AegisSub Skill · Lv.10

Increases Evasion by 34.4% upon reloading (for 15 sec).

Drag to see per-level scaling

Loved gifts · raise this student's affinity the most

Lace PillowSSR

Liked gifts · genre favorites — extra affinity

Jellies CushionSR · matches 2 tagsNutrient-Packed Multivitamin GummiesSSRHealth Food SupplementSRWavecat PillowSR

Star levels · credits and Eleph per star

2★

10,000 Credit Points + 30x Serina (Christmas)'s Eleph

3★

40,000 Credit Points + 80x Serina (Christmas)'s Eleph

4★

200,000 Credit Points + 100x Serina (Christmas)'s Eleph

5★

1,000,000 Credit Points + 120x Serina (Christmas)'s Eleph

Skill levels · per skill slot, per level

EX skill Lv.1 → 2

80,000 Credit Points + 12x Beginner Tactical Training Blu-ray (Trinity) + 13x Mandrake Seed

Basic / Enhanced / Sub skill Lv.1 → 2

5,000 Credit Points + 5x Beginner Tech Notes (Trinity)

EX skill Lv.2 → 3

500,000 Credit Points + 12x Normal Tactical Training Blu-ray (Trinity) + 18x Beginner Tactical Training Blu-ray (Trinity) + 13x Mandrake Sprout + 30x Wolfsegg Iron Ore

Basic / Enhanced / Sub skill Lv.2 → 3

7,500 Credit Points + 8x Beginner Tech Notes (Trinity)

EX skill Lv.3 → 4

3,000,000 Credit Points + 12x Advanced Tactical Training Blu-ray (Trinity) + 18x Normal Tactical Training Blu-ray (Trinity) + 7x Mandrake Juice + 25x Wolfsegg Steel

Basic / Enhanced / Sub skill Lv.3 → 4

60,000 Credit Points + 5x Normal Tech Notes (Trinity) + 12x Beginner Tech Notes (Trinity) + 5x Mandrake Seed

EX skill Lv.4 → 5

10,000,000 Credit Points + 8x Superior Tactical Training Blu-ray (Trinity) + 18x Advanced Tactical Training Blu-ray (Trinity) + 8x Mandrake Extract + 19x Low-Purity Wolfsegg Steel

Basic / Enhanced / Sub skill Lv.4 → 5

90,000 Credit Points + 8x Normal Tech Notes (Trinity) + 4x Mandrake Sprout + 12x Wolfsegg Iron Ore

Basic / Enhanced / Sub skill Lv.5 → 6

300,000 Credit Points + 5x Advanced Tech Notes (Trinity) + 12x Normal Tech Notes (Trinity) + 10x Mandrake Sprout + 18x Wolfsegg Iron Ore

Basic / Enhanced / Sub skill Lv.6 → 7

450,000 Credit Points + 8x Advanced Tech Notes (Trinity) + 3x Mandrake Juice + 16x Wolfsegg Steel

Basic / Enhanced / Sub skill Lv.7 → 8

1,500,000 Credit Points + 8x Superior Tech Notes (Trinity) + 12x Advanced Tech Notes (Trinity) + 4x Mandrake Extract + 8x Low-Purity Wolfsegg Steel

Basic / Enhanced / Sub skill Lv.8 → 9

2,400,000 Credit Points + 12x Superior Tech Notes (Trinity) + 8x Mandrake Extract + 14x Low-Purity Wolfsegg Steel

Basic / Enhanced / Sub skill Lv.9 → 10

4,000,000 Credit Points + 1x Secret Tech Notes

Weapon stars · cost per unique-weapon star

Unique weapon 2★

1,000,000 Credit Points + 120x Serina (Christmas)'s Eleph

Unique weapon 3★

1,500,000 Credit Points + 180x Serina (Christmas)'s Eleph

Unique weapon 4★

2,000,000 Credit Points + 200x Serina (Christmas)'s Eleph

Unique weapon 5★

2,500,000 Credit Points + 1x Serina (Christmas)'s Eleph

Unique Weapon

Tactical TherapyATK +582 · HP +3729

Serina's special assault rifle. It doesn't fire needles, but it carries a double dose of Serina's love.

Transcendence · per-star stat bonuses

★★ATK +10.0% HP +5.0% Heal +7.5%★★★ATK +22.0% HP +12.0% Heal +17.5%★★★★ATK +36.0% HP +21.0% Heal +29.5%★★★★★ATK +53.0% HP +35.0% Heal +44.5%

Bond bonuses · max affinity

HP+1355DEF+115

Equipment slots

ShoesHairpinCharm

Profile

Full nameSumi Serina

Age16 years old

BirthdayJanuary 6th

Height5'1"

School year2nd Year

IllustratorCHILD

Voice actor涼本あきほ

HobbyNursing patients, charity work

MottoPeace and joy to all during the Christmas season.

A member of the Trinity Remedial Knights. She's dressed in a Santa outfit to celebrate Christmas. She's spending her Christmas volunteering for charity work. Anyone who watches her singing carols and giving out her handmade gifts would think that she was an angel who came down from heaven for Christmas.