
Path-walking Keymaker
Sera
★★★★
/Ice/Fighter
Introduction
Sera is a 4-star Ice character in MONGIL: STAR DIVE. Sera's class is Fighter.
On the combined MONGIL: STAR DIVE tier list Sera is C tier, 20th of the 24 characters ranked, from where 8 community tier lists put Sera.
Other Ice characters in MONGIL: STAR DIVE: Cloud, Isabella, Narae and Ophelia.
Profile
Sera carries the title "Path-walking Keymaker". Sera's birthday is August 8th, and Sera stands 160cm tall. Sera is voiced by Kira Buckland in English, Rui Tanabe in Japanese, and Kang Eunae in Korean. Sera likes limited edition luxury goods and winning fights.
Background
Sera is a magical keymaker who has mysteriously lost her ability to unlock doors, on a quest to uncover the truth behind her parents' disappearance. Despite having mastered the art of unlocking magical barriers, she still struggles to unlock the hearts of others.
Stories
5The Only Child
Sera was born in Epitar, the thriving capital of Herma, as the only child of the Vanderbilts, one of the city's most powerful and influential couples.
Her parents, Cyrus and Aurora, were genius magi and pioneers of magical automations. Their groundbreaking inventions and production of magical devices revolutionized productivity across magus society, and they amassed incredible wealth and prestige. They struggled to conceive until a later age when they finally had Sera, and they hoped she would grow into a worthy successor.
However, Sera had no interest in fulfilling the expectations of others. In an effort to discipline her, her father enrolled her into Deldoer Magic Academy, a school infamous for its rigid rules and curriculum.
At first, Sera behaved cautiously, just like her father had hoped. But before long, she began to dominate the student body and the faculty with her wealth and power.
The Magic Academy's Keymaker
Highly competitive and proud, Sera often found herself seething with jealousy whenever fellow students were praised for their magical talent.
That envy drove her to focus on her studies, and one specific branch of magic held special interest to her. Sera was able to use her family's wealth to control anything, even her friends, but there was one thing money couldn't buy. The key to her father's storage vault.
Sera began studying everything related to magical seals, and as time passed, her power grew. By her fifth year, she was able to solve most seals with a single touch. She also invented unique unlocking spells only she could wield.
This earned her the nickname "The Keymaker" among her peers. Finally, she was able to unlock even her father's vault. Her parents were very pleased by her progress, but that wasn't enough to satisfy Sera.
Her eyes had already turned to something far more dangerous, the legendary lock, Laxima, and its counterpart, Arkarion. No one had ever laid claim to them, and Sera believed that she was destined to be their true master.
A Critical Price
In Elbraha Plateau, the heart of the continent, Sera discovered the "World's Navel." There, sealed away by their ancient creators, were two legendary artifacts: the cursed lock, Laxima, and its key, Arkarion.
Sera descended down the sealed staircase using a special magical device stolen from her father's vault and finally set her hands on the legendary key.
However, Laxima was not an ordinary magical lock. As Sera removed the key Laxima warned, "Power demands a price." Sera would pay with what she held most dear. But Sera wasn't too concerned; she assumed she would lose some jewels or a magical device.
Upon unlocking Laxima's seal and returning home, she was shocked to hear that her parents had gone missing. Laxima's curse had truly taken what she held most dear: her family.
Beginning the Journey
Determined to find her parents, Sera spared no expense. She hired multiple magi to study Laxima's curse.
After extensive research, she concluded that her parents were not dead, but likely trapped within a space known only as the "Still Room." A timeless void where nothing could die.
However, those who opened this room would have to pay a price. They would lose all their memories of Arkarion and all that they'd attained with it.
Without hesitation, Sera decided to embark on a journey to find her parents. She packed Laxima in her designer bag and began her journey across unknown dimensions.
To use Laxima's power, she had to fulfill various "promises," but Sera pressed on, driven by the singular vow: to bring her parents home.
The Path of No Return
Searching for traces of her parents, Sera journeyed through countless doors across Belana and arrived in Solismenamus.
Months later, after having fulfilled all of Laxima's demands but still unable to find her parents, Sera decided to return home. She tried to summon the power of Arkarion, but for some reason, a door wouldn't open.
After trying several times, she was shocked to realize that she could no longer open doors. She didn't know why the key no longer responded. Now, in order to find her parents, she had to find a way to restore the key's power.
She suspected that the Void, which had begun to taint this world, had affected the key's powers, and contacted Monster Tamers to find a group of adventurers rumored to be pursuing the Void phenomenon.
Stats
- HP15th of 289,272
- ATK25th of 281,766
- DEF24th of 28580
- Fighter proficiency1,026
At level 60, Breakthrough tier 4, before Artifacts, gear and Monsterlings. Each bar is measured against the highest value in the MONGIL: STAR DIVE roster, and the place is out of every character with that stat.
- Tier 0Level: 1ATK: 48DEF: 13HP: 378Proficiency: 48Neutralization: 14
- Tier 0Level: 20ATK: 196DEF: 55HP: 1,056Proficiency: 198Neutralization: 59
- Tier 1Level: 30ATK: 341DEF: 117HP: 1,791Proficiency: 325Neutralization: 93
- Tier 2Level: 40ATK: 620DEF: 224HP: 3,253Proficiency: 518Neutralization: 143
- Tier 3Level: 50ATK: 1,069DEF: 376HP: 5,612Proficiency: 751Neutralization: 200
- Tier 4Level: 60ATK: 1,766DEF: 580HP: 9,272Proficiency: 1,026Neutralization: 265
Skills
5
Arkarion: Bound
Basic AttackSera deals Physical DMG by swinging Arkarion and gains Laxima Energy.
- 1st Hit DMG
- 46.7%
- 2nd Hit DMG
- 46.7%
- 3rd Hit DMG
- 29.1%
- 4th Hit DMG
- 120.9%
- Charge Attack DMG
- 41.7%
- Air Counter DMG
- 108.2%
- Evasion Counter DMG
- 223.3%
- Laxima Energy Charge Ratio
- 5%

Laxima: Sealed
Special Skill, 14.9s cooldownSera spins with Laxima in hand, dealing Ice DMG and gaining Arkarion Energy.
While spinning, enemies within range are pulled towards her. Upon releasing the Special Skill button, she raises Laxima to render enemies Airborne. (Total DMG remains the same regardless of when the button is released.)
If enemies are too far, she approaches them quickly before spinning. Sera can move slowly while spinning.
- DMG
- 489.3%
- Arkarion Energy Charge per DMG Ratio
- 12.5%
- Cooldown
- 14.9s

Arkarion Laxima: Unleashed
Ultimate SkillSera unleashes Laxima's hidden power into Arkarion, dealing Ice DMG and inflicting Ice Affliction and Freeze.
After unleashing, Sera enters the Arkarion Unleashed state.
- Laxima Unleashed DMG
- 459.9%
- Freeze Duration
- 10s
- Ice Affliction Duration
- 5s
Ice Affliction
Afflicted targets take Ice DMG over time, and Ice RES decreases by 15%.
Freeze
Afflicted targets are frozen and cannot move.

Arkarion: Restricted
Switch SkillSera deals Physical DMG by quickly approaching the enemy and swinging Arkarion, gaining Laxima Energy.
- DMG
- 147.5%
- Laxima Energy Charge Ratio
- 5%

Lock Shard
Passive TraitUsing a Basic Attack or Switch Skill while controlling Sera consumes Arkarion Energy, dealing Ice DMG and triggering an additional strike. Sera's Crit DMG increases for a set duration upon attacking enemies afflicted with Ice Affliction.
Using a Special Skill in the Laxima Unleashed state completely consumes Sera's Laxima Energy to increase her Special Skill DMG.
Laxima Unleashed
Once Sera's Laxima Gauge is fully charged with Laxima Energy, she enters the Laxima Unleashed state.Arkarion Unleashed
Once Sera's Arkarion Gauge is fully charged with Arkarion Energy, she enters the Arkarion Unleashed state.- Bonus DMG
- 30%
- Arkarion Energy Drain Ratio
- 6.25%
- Crit DMG Boost
- 20%
- Crit DMG Boost Duration
- 7s
- Special Skill DMG Boost
- 32%
Ice Affliction
Afflicted targets take Ice DMG over time, and Ice RES decreases by 15%.
Awakening
6 stages
Stage 1: Secret Time
Sera gains Laxima Energy 2 times faster upon using her Basic Attacks or Switch Skill.
Holding the Basic Attack button when she has Arkarion Energy quickly moves her to the enemy and triggers Arkarion: Focused Spin.
Arkarion: Focused Spin
This attack deals Ice DMG equal to 150% of Sera's Basic Attack's 4th Hit and consumes up to 31.25% of her Arkarion Energy. However, Sera cannot gain Laxima Energy, and enters the Unstable Arkarion state for 5s after using this skill, making Arkarion: Focused Spin unavailable.
Stage 2: Key Maker
The max Arkarion Gauge charge increases by 62.5%.
Sera's Special Skill's spin duration increases, increasing total DMG by 50%. Her Movement Speed while spinning increases by 60%, and the amount of obtainable Arkarion Energy increases by 62.5%.

Stage 3: Insatiable Curiosity
The skill levels of the Basic Attack, Switch Skill, Special Skill, and Ultimate Skill increase by 2.
Special Skill's cooldown decreases by 4.5%.

Stage 4: Open the Magic Path
Arkarion Unleashed lasts for 10s upon using Sera's Ultimate Skill.
While in the Arkarion Unleashed state, the next Basic Attack or Switch Skill DMG have a 30% chance of inflicting Ice Affliction on the enemy.

Stage 5: Unleashed
The skill levels of the Basic Attack, Switch Skill, Special Skill, and Ultimate Skill increase by 2.
Increases Basic Attack DMG by 6%.

Stage 6: Unlock the Light
When Sera enters the Laxima Unleashed state, her Special Skill cooldown is reset.
While in the Arkarion Unleashed state, the Crit DMG of her next Basic Attack or Switch Skill increases by 30%.
Elemental Sanctum skills
Skill levels 1 to 16- Arkarion: ResonanceFrom the startSwitching to another Teammate increases ATK by 6 to 7.5%. (Duration: 15s)
Details
- Range
- Melee
- Personality
- Inquisitive, Bright
- Height / Weight
- 160cm / 51kg
- Hometown
- Epitar
- Dislikes
- Losing, People who don't take care of themselves
- Tags
- #Arrogant #HidingSomething #Competitive #LuxuryLover
Voice lines
43Lobby and menus (23)
- Meeting
- Where there's a will, there's a way!
- Added to Party #1
- I can't miss this opportunity.
- Added to Party #2
- Fine. I'll join you.
- Awakening #1
- I feel much lighter on my feet!
- Awakening #2
- Ooh, a burst of energy!
- Awakening #3
- No one can stop me!
- Awakening #4
- I can open anything, but a person's heart isn't an easy safe to crack. But I'm not giving up. Everything opens up with time.
- Power Up #1
- Am I a bit stronger?
- Power Up #2
- I feel like I've grown.
- Power Up #3
- More! I'm still craving more!
- Power Up #4
- There's more power yet within me!
- Power Up #5
- Alright. Just like this!
- Clear #1
- There's nothing I can't do!
- Clear #2
- Well, that was a piece of cake!
- Clear #3
- That wasn't very hard at all.
- Character Info
- Which door should I open next?
- Level Up
- I'm absolutely going to get stronger!
- Monsterling #1
- I love me a pretty, shiny bauble.
- Monsterling #2
- Everything here's almost as pretty as me, huh?
- Monsterling #3
- Oooh, this one! I like this one!
- Profile
- What could possibly stand in my way?
- Treasure Obtained #1
- I can feel it... the aura of luxury!
- Treasure Obtained #2
- Treasure? Ooo, I like anything that sparkles!
In battle (20)
- Special Skill #1-1
- C'mon, you can take this!
- Special Skill #1-2
- Just try to stop me.
- Special Skill #1-3
- This is it!
- Evasion Counter #1-1
- Nice try!
- Evasion Counter #1-2
- No thank you.
- Evasion Counter #1-3
- Hah!
- Ultimate Skill #1
- There's no escape!
- Ultimate Skill #2
- Everybody freeze!
- Burst #1
- Magic key! Open a path!
- Burst #2
- You can't defeat me!
- Fallen #1
- This can't be...
- Fallen #2
- Not... here...
- Fallen #3
- I want to... go home...
- Air Counter #1
- It's not over yet!
- Air Counter #2
- Over here!
- Bind
- Gotcha!
- Switch Skill #1
- My turn!
- Switch Skill #2
- Stay alert!
- Idle #1
- Huh? Wait, I hear something.
- Idle #2
- Sometimes, I wish I could just take a break.
Upgrade costs
Open in the plannerBreakthrough
- Tier 1 (level cap 30)
Gold ×30,000
Basic Fighter Medallion ×120 - Tier 2 (level cap 40)
Gold ×60,000
Standard Fighter Medallion ×8 - Tier 3 (level cap 50)
Gold ×120,000
Greater Fighter Medallion ×6 - Tier 4 (level cap 60)
Gold ×250,000
Superior Fighter Medallion ×4
Awakening
- Stage 1
Seed of Destiny - Sera ×1 - Stage 2
Seed of Destiny - Sera ×2 - Stage 3
Seed of Destiny - Sera ×3 - Stage 4
Seed of Destiny - Sera ×4 - Stage 5
Seed of Destiny - Sera ×5 - Stage 6
Seed of Destiny - Sera ×6
Each skill level (Basic Attack, Special, Ultimate and Switch Skill)
- Level 2
Gold ×2,000
Tawny Fur ×10 - Level 3
Gold ×3,000
Tawny Fur ×15 - Level 4
Gold ×4,000
Matted Fur ×10 - Level 5
Gold ×5,000
Matted Fur ×15 - Level 6
Gold ×6,000
Soft Fur ×10 - Level 7
Gold ×7,000
Soft Fur ×15 - Level 8
Gold ×8,000
Sleek Fur ×10 - Level 9
Gold ×9,000
Sleek Fur ×15 - Level 10
Gold ×10,000
Rippling Fur ×10
Advanced Combat Theory ×1 - Level 11
Gold ×11,500
Rippling Fur ×15
Advanced Combat Theory ×1 - Level 12
Gold ×13,000
Rippling Fur ×20
Advanced Combat Theory ×1
Art








