Seren/Monster

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Chosen Seren
Prequest[Cernium (After)] Defensive Tactics
Normal
Entry Level260+
Party Size1 - 6
Required Force / PowerPhase 1: ⬢150 SAC / AUT
Phase 2: ⬢200 SAC / AUT
Potion Cooldown10 seconds
Time Limit30 minutes
Death Count5
Clear Limit1 clear every week
(shared with Hard, Extreme)
Required Combat Power (CMS)
Total or 1-Person:
50,000,000

2-Person:
16,000,000
3-Person:
10,000,000
4-Person:
8,100,000
5-Person:
6,500,000
6-Person:
5,400,000

Hard
Entry Level260+
Party Size1 - 6
Required Force / PowerPhase 1: ⬢150 SAC / AUT
Phase 2: ⬢200 SAC / AUT
Potion Cooldown10 seconds
Time Limit30 minutes
Death Count5
Clear Limit1 clear every week
(shared with Normal, Extreme)
Required Combat Power (CMS)
Total or 1-Person:
80,000,000

2-Person:
26,000,000
3-Person:
17,000,000
4-Person:
13,000,000
5-Person:
10,000,000
6-Person:
8,600,000

Destiny Mode (1-Person):
300,000,000
Extreme
Entry Level260+
Party Size1 - 6
Required Force / PowerPhase 1: ⬢150 SAC / AUT
Phase 2: ⬢200 SAC / AUT
Potion Cooldown10 seconds
Time Limit30 minutes
Death Count8
Clear Limit1 clear every week
(shared with Normal, Hard)
Required Combat Power (CMS)
Total or 1-Person:
800,000,000

2-Person:
260,000,000
3-Person:
170,000,000
4-Person:
130,000,000
5-Person:
100,000,000
6-Person:
86,000,000

Name (Other Servers)
KoreaMS선택받은 세렌
(Chosen Seren)
JapanMS選ばれし者セレン
(Chosen Seren)
ChinaMS神选者塞伦
(Chosen Seren)
TaiwanMS受選的賽蓮
(Chosen Seren)
MapleSEAChosen Serene

Chosen Seren, also known simply as Seren, is the final boss of Cernium, where she is being controlled by the sun god Mitra after Gerand Darmoor whispers an incantation in her ear. Seren will use Mitra's powers to attack the player. While not introduced as a fightable boss during the Glory Update's version of the Cernium storyline, she makes her first appearance as a fightable boss in the NEO Update.

Battle Overview

Seren can be fought in Normal, Hard, and Extreme mode. To deal regular damage to the boss, ⬢Sacred Power / Authentic Force (SAC / AUT) is required. Normal, Hard, and Extreme mode require a minimum of ⬢150 SAC / AUT for Phase 1 and ⬢200 SAC / AUT for Phase 2. You will deal -10% final damage for every 10 SAC / AUT below the required amount; if you have 100 or more SAC / AUT below the required amount, you will only deal a total of 5% final damage. Similarly, you will deal +5% final damage for every 10 SAC / AUT above the required amount, up to +25% (50 above). This means that to deal the maximum amount of bonus damage, you will need 200 SAC / AUT for Phase 1, and 250 SAC / AUT for Phase 2.

You must be in a party of 1 - 6 players in order to fight her, and each player has a Death Count of 5 (8 in Extreme mode). If all players reach 0 lives, or if the failure condition is met in Phase 2, then the battle will end and the party will be kicked out of the boss fight. An explanation on the failure condition of Phase 2 is provided further below. The battle has a time limit of 30 minutes, and a Potion Cooldown of 10 seconds is applied.

The battle consists of 2 phases and she can cycle between 4 different forms during Phase 2 as time progresses.
Defeating Seren in Hard and Extreme mode will allow the player to obtain Mitra's Nodestone as a guaranteed drop. Note that Solar Crest, the skill obtained from Mitra's Nodestone, cannot be used during the battle with Seren.

NOTE: Most damage values will vary based on difficulty, and will be listed in order from lowest difficulty to highest. Example: if listed as 25 / 30 / 35, then the 25 correlates to Normal mode, the 30 correlates to Hard mode, and 35 correlates to Extreme mode. If there is no listed values, then it is the same regardless of difficulty unless stated otherwise.

Phase 1

  • Phase 1's Sun Gauge
    Phase 1's Sun Gauge
  • Gauge: Each player has a sun-shaped gauge during the fight. Each attack by Seren that hits the player increases the gauge. When the gauge is full, the player is stunned for 8 seconds, preventing them from moving, attacking, or healing themselves. This effect can be negated with skills such as Zero's Time Distortion or Battle Mage's Blue Aura. The gauge will reset upon entering Phase 2.
  • Meteors: Sun-like meteors will fall from the sky, dealing 15% HP damage and inflicting Blind to reduce your accuracy.
  • Holy Pillars: Pillars of light rise from the floor, in a similar manner to the pillars of light used by Darknell. These deal 40% HP damage and increase the curse gauge. Note that binding Seren will not cause these attacks to stop. In Normal mode, its activation time is longer than in Hard and Extreme.
  • Rush: Seren rushes forward to attack the player, in a similar manner to Damien in Phase 2. It's a super knockback attack that deals 30% HP damage and increases the curse gauge. This attack can be avoided by ducking below it.
  • Impale: Seren stabs the player with her sword, dealing 15% HP damage and increasing the curse gauge.
  • Lasers: Seren will summon diagonal lasers around her, which will cover the map and disappear after a couple of seconds. Each laser deals 50% HP damage.
    In Normal and Hard mode, getting hit by these lasers will not increase the player's gauge; in Extreme mode, getting hit will increase the player's gauge by a significant amount.
  • Sword Aura Wave: Seren waves her sword and launches an aura wave, which travels across the map, in a similar manner to Warrior's Weapon Aura skill except that it's much slower and has a larger hitbox. While you can dodge the attack by ducking, you'll probably get hit by her other attacks because of the slow movement of the aura. If you get hit by the attack, it will deal 20% HP damage, stun you, and increase the curse gauge. If you're still in the aura's range, you'll get attacked by it continuously. Can cost many lives if you're not careful.
The sun's flame will have vengeance.


Phase 2

  • Phase 2's Sun Gauge
    Phase 2's Sun Gauge

After Phase 1 is defeated, the players will be transported to the Barrier Between Worlds map, where Seren has finally awakened the powers of the Sun God. During this phase, Seren can change between 4 forms, depending on the duration of the fight shown in the gauge.

  • Gauge: The gauge is upgraded by having clock-like parts that progresses over time, in addition to the curse meter from Phase 1, which was reset upon phasing. The gauge is divided into 4 parts: yellow (representing noon), red (representing sunset), dark blue (representing midnight) and light blue (representing dawn). The parts are not even, and the midnight part is the shortest one. Whenever a player's curse gauge is filled, in addition to the negative effect shown in Phase 1, the midnight part becomes smaller. The midnight section will be reduced up to 35 times in total, but it will be increased if all players in the party avoid having their curse gauge filled for an entire cycle (Midday / Noon, Dusk / Sunset, or Dawn). If the midnight part disappears entirely due to players constantly getting cursed, the entire party will fail regardless of each player's death count.
If the sun never sets, my power is eternal.


  • Ray of Light: Near the end of each part, Seren will prepare an ultimate attack before she transforms. A yellow flame will appear at the top of the screen and shortly after light rays will descend from the sky, in a similar manner to Black Mage's ultimate attack in Phase 4. If at least one person is hit by a ray, regardless of whether they are alive, dead, or have active invincibility frames, all players will take 1000% HP damage and cap out their Sun Gauge without getting stunned (invincibility frames will bypass this penalty should it happen). Only one ray will be raised, and that is the only safe spot to stand under. Afterwards, she will take on the next form, with the background and BGM changing accordingly. Be warned that this attack can be affected by server lag, as it relies on everybody on each player's screen visibly standing in the safe spot, so in a party, it is imperative to communicate where the safe spot is and run there as quickly as possible.

Midday / Noon

  • Sun Rays: two sun-like spotlights will appear at the top of the map, firing sun rays that appear diagonally for a couple of seconds. Each sun ray causes continuous 10% HP damage, limits your visibility by showing white screen, and increases the curse gauge. Note that the attack will still appear even if Seren is bound. The lower the HP, the more rays will appear; at 33% HP and below, up to 3 (or up to 4 in Extreme mode) sun rays will appear.
  • Mitra's Flames: A circle-shaped spot will appear on the map for a short warning duration and explode, dealing 35% HP damage and inflicting Blind to reduce your accuracy.
  • Rush: Similar to Phase 1 except that the attack is much faster, deals 35% HP damage, and also inflicts Blind.
  • Impale: Similar to Phase 1 except that it deals 20% HP damage.
  • Laser: Seren fires a laser in front of her. The laser deals 35% HP damage and stuns the player. You can dodge the attack by ducking below it.
  • Diagonal Lasers: Similar to Phase 1 except that the cast time is much faster and each laser's hitbox is wider.

Dusk / Sunset

  • Flame Pillar
    Flame Pillar

In this form, Seren's attacks will be fire-oriented due to harnessing Spisa's powers, and therefore they will cause much more damage and some of them will apply Damage-over-Time. Potion recovery efficiency is reduced by 80% at this stage. Players may use skill Decent Holy Fountain to heal instead, which is unaffected by recovery efficiency reduction.

  • Flamberge: Seren will continuously summon large light rays on the floor, which will appear for 1-2 seconds as a warning period, and then will raise flame swords from the floor towards unlucky players who get caught by them, dealing 70% / 90% / 90% HP damage. Note that the swords will appear even if she is bound.
  • Summon Flame Pillar: Seren will create two fire walls near the edges of the map in order to limit the players, making them more vulnerable to attacks, similar to Will's spiderwebs in Phase 2. Getting hit by each wall will deal 50% HP damage and inflict damage over time, which will appear above the player as a fiery orb.
  • Fire Slash: Seren will swing her sword forward in 3 different poses. She can swing her sword, or stab you, in a similar manner to her regular stab except that its range is much wider. She can do multiple slashes in a row and if that happens, she will keep slashing even when she's bound. The first and second slashes deal 90% / 200% / 200% HP damage each, while the third slash deals 200% HP damage. All three slashes can be avoided by ducking.
  • Flames of Spisa: Seren will drop a series of meteors, which will descend vertically from the sky into the field.
  • Rush: Similar to Noon form except that it deals 50% HP damage.
  • Impale: Similar to Noon form except that it deals 35% HP damage and inflicts the Damage-over-Time and healing prevention debuff.

Twilight / Midnight

The duration of this form is the shortest but also it's the most important part, as it can decrease if a player fills the curse gauge. If it disappears completely, the entire party will be kicked out. Therefore, it's advised to avoid getting cursed as much as possible to prevent this from happening. Attacks in this phase will NOT cause the curse gauge to increase, so use it to your advantage.

It is considered the ideal form for players to deal burst damage to her, but players need to avoid getting hit by some of her attacks as they can inflict abnormal status effects and interfere with their burst.

  • Light Sparks: Small beams of light appear in several places on the map. Deals 15% HP damage.
  • Shockwave: Seren creates a shockwave to push surrounding players away. Deals 20% HP damage and inflicts Blind.
  • Rush: Similar to her other forms except that it deals 15% HP damage.
  • Impale: Similar to her other forms except that it deals 10% HP damage.

Dawn

  • Avatar of Nerota
    Avatar of Nerota
  • Nerota's Power
    Nerota's Power

In this form, Seren will harness Nerota's healing powers and therefore most of her skills will be defensive, focused on healing herself while using summons to protect herself.

  • Energy of Dawn: Upon transforming, she will cover herself with a shield, represented by a white HP gauge that will initially cover 10% of her HP bar and will increase slightly as time goes or if you get hit by any attacks. This HP bar will be damaged instead, and if it reaches 0, all damage will go to her main HP bar instead. Upon transforming back into her Noon form, she will heal herself with the amount of HP remaining in the white gauge.
Shield recovery amounts from attacks
Source Recovery amount
Over time 0.024% per second
Avatar of Nerota 0.126%
Azor's Descent and Impale 0.14%
All other attacks 0.167%
  • Summon Avatar of Nerota: Seren will summon the deer-looking physical incarnation of Nerota to chase the player. It cannot be killed, and getting rammed by it will cause 10% HP damage with a super knockback effect. Up to 2 deer can exist in Normal mode, and up to 3 deer can exist in Hard and Extreme mode.
    • There will always be at least 1 Avatar of Nerota summoned. In Normal mode, a second Avatar will be summoned when Seren's HP is below 41%. In Hard mode, a second and third Avatar will be summoned when Seren's HP is below 41% and 21%, and in Extreme mode, a second and third Avatar will be summoned when Seren's HP is below 76% and 51%.
  • Summon Nerota's Power: Blue spheres will spawn every 15 seconds to pursue the player. When the player gets close to the sphere, it self-destructs, causing 25% HP damage and reverses keys. If they do not explode after 22 seconds, they will despawn. Up to 6 can exist at a time.
  • Azor's Descent: Seren will constantly summon swords that will fall towards the field vertically from the sky. Deals 25% HP damage and stuns the player.
  • Traps: Seren will set a mobile trap traveling away from her. Every 2.7 seconds, it explodes, causing 35% HP damage and super knockback.
  • Rush: Similar to her other forms except that it deals 30% HP damage and slows the player.
  • Impale: Similar to her other forms except that it deals 15% HP damage and slows the player.

Upon defeating Seren, she will be freed from Mitra's influence as Azor is shattered.

The sun will soon rise again...


Monster

Cernium

Normal

Normal: Phase 1

Required SAC / AUT: ⬢150

Chosen Seren (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 270 HP 52,500,000,000,000[1] MP 100,000 EXP 0
Attack 22,000 Defense Rate PDR: 380%
MDR: 380% 		Speed -20 Additional Points None
Elements
Fire Resistant Ice Resistant
Poison Resistant Lightning Resistant
Holy Resistant Dark Resistant
Physical Resistant Undead? No
Other
Category Enchanted
Equipment Drops None
Usable Drops None
Set-up Drops None
Etc. Drops None
Quest Drops None
Locations Palace Main Hall
Normal: Phase 2

Required SAC / AUT: ⬢200

Chosen Seren (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 270 HP 155,400,000,000,000[1][2] MP 100,000 EXP 0
Attack 22,000 Defense Rate PDR: 380%
MDR: 380% 		Speed -20 Additional Points None
Elements
Fire Resistant Ice Resistant
Poison Resistant Lightning Resistant
Holy Resistant Dark Resistant
Physical Resistant Undead? No
Other
Category Enchanted
Equipment Drops None
Usable Drops None
Set-up Drops None
Etc. Drops None
Quest Drops None
Locations Barrier Between Worlds

Chosen Seren (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 270 HP 155,400,000,000,000[1][2] MP 100,000 EXP 0
Attack 22,000 Defense Rate PDR: 380%
MDR: 380% 		Speed 0 Additional Points None
Elements
Fire Resistant Ice Resistant
Poison Resistant Lightning Resistant
Holy Resistant Dark Resistant
Physical Resistant Undead? No
Other
Category Enchanted
Equipment Drops None
Usable Drops None
Set-up Drops None
Etc. Drops None
Quest Drops None
Locations Barrier Between Worlds

Chosen Seren (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 270 HP 155,400,000,000,000[1][2] MP 100,000 EXP 0
Attack 22,000 Defense Rate PDR: 380%
MDR: 380% 		Speed -40 Additional Points None
Elements
Fire Resistant Ice Resistant
Poison Resistant Lightning Resistant
Holy Resistant Dark Resistant
Physical Resistant Undead? No
Other
Category Enchanted
Equipment Drops None
Usable Drops None
Set-up Drops None
Etc. Drops None
Quest Drops None
Locations Barrier Between Worlds

Chosen Seren (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 270 HP 155,400,000,000,000[1][2] MP 100,000 EXP 0
Attack 22,000 Defense Rate PDR: 380%
MDR: 380% 		Speed 0 Additional Points None
Elements
Fire Resistant Ice Resistant
Poison Resistant Lightning Resistant
Holy Resistant Dark Resistant
Physical Resistant Undead? No
Other
Category Enchanted
Summons Nerota's Power
Equipment Drops None
Usable Drops None
Set-up Drops None
Etc. Drops None
Quest Drops None
Locations Barrier Between Worlds

Normal: Reward
Chosen Seren's Treasure Chest (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 270 HP 100,000 MP 0 EXP 0
Attack 0 Defense Rate PDR: 380%
MDR: 380% 		Speed Stationary Additional Points Ambition EXP: 385
Weapon Points: 300
Guild Points: 3,000
Party GP Bonus: 6,000
Elements
Fire Neutral Ice Neutral
Poison Neutral Lightning Neutral
Holy Neutral Dark Neutral
Physical Neutral Undead? No
Other
Category Enchanted
Fixed Damage 1,000
Equipment Drops Daybreak Pendant
Usable Drops
Set-up Drops None
Etc. Drops
Quest Drops None
Locations Palace Main Hall

Hard

MapleStory Final Bosses by period

Zakum
(2006-2008)
Horntail
(2008-2009)
Pink Bean
(2009-2010)
Chaos Horntail
(2010-Chaos)
Normal Cygnus
(Chaos - Tempest)
Hard Magnus
(Tempest - Unleashed)
Chaos Vellum
(Unleashed - Rising Heroes)
Dorothy
(Rising Heroes - FIREPOWER)
Hard Lotus
(FIREPOWER - Override)

Hard Lucid
(Override-ARK)
Hard Will
(ARK-Black Mage)
Black Mage
(Black Mage - NEO)
Hard Seren
(NEO - Destiny)
Normal Kalos
(formerly Chaos Kalos)
(Destiny - Ignition)
Extreme Seren
(Ignition - New Age)
Extreme Kaling
(New Age - Ride The Lightning)
Hard Jupiter
(Ride The Lightning - )
Hard: Phase 1

Required SAC / AUT: ⬢150

Chosen Seren (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 275 HP 126,000,000,000,000[1] MP 100,000 EXP 0
Attack 22,000 Defense Rate PDR: 380%
MDR: 380% 		Speed -20 Additional Points None
Elements
Fire Resistant Ice Resistant
Poison Resistant Lightning Resistant
Holy Resistant Dark Resistant
Physical Resistant Undead? No
Other
Category Enchanted
Equipment Drops None
Usable Drops None
Set-up Drops None
Etc. Drops None
Quest Drops None
Locations Palace Main Hall
Hard: Phase 2

Required SAC / AUT: ⬢200

Chosen Seren (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 275 HP 357,000,000,000,000[1][2] MP 100,000 EXP 0
Attack 22,000 Defense Rate PDR: 380%
MDR: 380% 		Speed -20 Additional Points None
Elements
Fire Resistant Ice Resistant
Poison Resistant Lightning Resistant
Holy Resistant Dark Resistant
Physical Resistant Undead? No
Other
Category Enchanted
Equipment Drops None
Usable Drops None
Set-up Drops None
Etc. Drops None
Quest Drops None
Locations Barrier Between Worlds

Chosen Seren (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 275 HP 357,000,000,000,000[1][2] MP 100,000 EXP 0
Attack 22,000 Defense Rate PDR: 380%
MDR: 380% 		Speed 0 Additional Points None
Elements
Fire Resistant Ice Resistant
Poison Resistant Lightning Resistant
Holy Resistant Dark Resistant
Physical Resistant Undead? No
Other
Category Enchanted
Equipment Drops None
Usable Drops None
Set-up Drops None
Etc. Drops None
Quest Drops None
Locations Barrier Between Worlds

Chosen Seren (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 275 HP 357,000,000,000,000[1][2] MP 100,000 EXP 0
Attack 22,000 Defense Rate PDR: 380%
MDR: 380% 		Speed -40 Additional Points None
Elements
Fire Resistant Ice Resistant
Poison Resistant Lightning Resistant
Holy Resistant Dark Resistant
Physical Resistant Undead? No
Other
Category Enchanted
Equipment Drops None
Usable Drops None
Set-up Drops None
Etc. Drops None
Quest Drops None
Locations Barrier Between Worlds

Chosen Seren (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 275 HP 357,000,000,000,000[1][2] MP 100,000 EXP 0
Attack 22,000 Defense Rate PDR: 380%
MDR: 380% 		Speed 0 Additional Points None
Elements
Fire Resistant Ice Resistant
Poison Resistant Lightning Resistant
Holy Resistant Dark Resistant
Physical Resistant Undead? No
Other
Category Enchanted
Summons Nerota's Power
Equipment Drops None
Usable Drops None
Set-up Drops None
Etc. Drops None
Quest Drops None
Locations Barrier Between Worlds

Hard: Reward
Chosen Seren's Treasure Chest (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 275 HP 100,000 MP 0 EXP 0
Attack 0 Defense Rate PDR: 380%
MDR: 380% 		Speed Stationary Additional Points Ambition EXP: 388
Weapon Points: 300
Guild Points: 3,000
Party GP Bonus: 6,000
Elements
Fire Neutral Ice Neutral
Poison Neutral Lightning Neutral
Holy Neutral Dark Neutral
Physical Neutral Undead? No
Other
Category Enchanted
Fixed Damage 1,000
Equipment Drops Daybreak Pendant
Usable Drops
Set-up Drops None
Etc. Drops
Quest Drops None
Locations Palace Main Hall

Extreme

Extreme mode was added during Ignition: Extreme patch, alongside Extreme Black Mage. It has 13.4x the HP of Hard mode, with an amount of 6.48 quadrillion HP, putting her even above Extreme Black Mage, a fact that made her serve as the final boss of the game until New Age patch. In GMS it was defeated for the first time in April 2023, five months after its initial release.[3]

MapleStory Final Bosses by period

Zakum
(2006-2008)
Horntail
(2008-2009)
Pink Bean
(2009-2010)
Chaos Horntail
(2010-Chaos)
Normal Cygnus
(Chaos - Tempest)
Hard Magnus
(Tempest - Unleashed)
Chaos Vellum
(Unleashed - Rising Heroes)
Dorothy
(Rising Heroes - FIREPOWER)
Hard Lotus
(FIREPOWER - Override)

Hard Lucid
(Override-ARK)
Hard Will
(ARK-Black Mage)
Black Mage
(Black Mage - NEO)
Hard Seren
(NEO - Destiny)
Normal Kalos
(formerly Chaos Kalos)
(Destiny - Ignition)
Extreme Seren
(Ignition - New Age)
Extreme Kaling
(New Age - Ride The Lightning)
Hard Jupiter
(Ride The Lightning - )
Extreme: Phase 1

Required SAC / AUT: ⬢150

Chosen Seren (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 275 HP 1,320,000,000,000,000[1] MP 100,000 EXP 0
Attack 22,000 Defense Rate PDR: 380%
MDR: 380% 		Speed -20 Additional Points None
Elements
Fire Resistant Ice Resistant
Poison Resistant Lightning Resistant
Holy Resistant Dark Resistant
Physical Resistant Undead? No
Other
Category Enchanted
Equipment Drops None
Usable Drops None
Set-up Drops None
Etc. Drops None
Quest Drops None
Locations Palace Main Hall
Extreme: Phase 2

Required SAC / AUT: ⬢200

Chosen Seren (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 280 HP 5,160,000,000,000,000[1][2] MP 100,000 EXP 0
Attack 22,000 Defense Rate PDR: 380%
MDR: 380% 		Speed -20 Additional Points None
Elements
Fire Resistant Ice Resistant
Poison Resistant Lightning Resistant
Holy Resistant Dark Resistant
Physical Resistant Undead? No
Other
Category Enchanted
Equipment Drops None
Usable Drops None
Set-up Drops None
Etc. Drops None
Quest Drops None
Locations Barrier Between Worlds

Chosen Seren (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 280 HP 5,160,000,000,000,000[1][2] MP 100,000 EXP 0
Attack 22,000 Defense Rate PDR: 380%
MDR: 380% 		Speed 0 Additional Points None
Elements
Fire Resistant Ice Resistant
Poison Resistant Lightning Resistant
Holy Resistant Dark Resistant
Physical Resistant Undead? No
Other
Category Enchanted
Equipment Drops None
Usable Drops None
Set-up Drops None
Etc. Drops None
Quest Drops None
Locations Barrier Between Worlds

Chosen Seren (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 280 HP 5,160,000,000,000,000[1][2] MP 100,000 EXP 0
Attack 22,000 Defense Rate PDR: 380%
MDR: 380% 		Speed -40 Additional Points None
Elements
Fire Resistant Ice Resistant
Poison Resistant Lightning Resistant
Holy Resistant Dark Resistant
Physical Resistant Undead? No
Other
Category Enchanted
Equipment Drops None
Usable Drops None
Set-up Drops None
Etc. Drops None
Quest Drops None
Locations Barrier Between Worlds

Chosen Seren (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 280 HP 5,160,000,000,000,000[1][2] MP 100,000 EXP 0
Attack 22,000 Defense Rate PDR: 380%
MDR: 380% 		Speed 0 Additional Points None
Elements
Fire Resistant Ice Resistant
Poison Resistant Lightning Resistant
Holy Resistant Dark Resistant
Physical Resistant Undead? No
Other
Category Enchanted
Summons Nerota's Power
Equipment Drops None
Usable Drops None
Set-up Drops None
Etc. Drops None
Quest Drops None
Locations Barrier Between Worlds

Extreme: Reward
Chosen Seren's Treasure Chest (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 280 HP 100,000 MP 0 EXP 0
Attack 0 Defense Rate PDR: 380%
MDR: 380% 		Speed Stationary Additional Points Ambition EXP: 388
Weapon Points: 300
Guild Points: 3,000
Party GP Bonus: 6,000
Elements
Fire Neutral Ice Neutral
Poison Neutral Lightning Neutral
Holy Neutral Dark Neutral
Physical Neutral Undead? No
Other
Category Enchanted
Fixed Damage 1,000
Equipment Drops Daybreak Pendant
Usable Drops
Set-up Drops None
Etc. Drops
Quest Drops None
Locations Palace Main Hall

Story

Seren (Boss)
1 (100%) 1 (100%) 1 (100%) 1 (100%) 1 (100%)
Level 270 HP 2,100,000,000 MP 75,000 EXP 0
Attack 17,460 Defense Rate PDR: 10%
MDR: 10% 		Speed -30 Additional Points None
Elements
Fire Resistant Ice Resistant
Poison Resistant Lightning Resistant
Holy Resistant Dark Resistant
Physical Resistant Undead? No
Other
Category Enchanted
Fixed Damage 1
Equipment Drops None
Usable Drops None
Set-up Drops None
Etc. Drops None
Quest Drops None
Locations None

Trivia

  • Seren's forms at Phase 2 are all embodiments of Mitra and his lesser forms, Spisa and Nerota.
  • This is the first boss to exceed the 300% PDR limit, as she has 380% PDR. However, it's not the first monster to have over 300% PDR, as the Red-eyed Gargoyle's Hidden Nightmare Clocktower in Lachelein had 930% PDR; the map along with those monsters were removed in Beyond / Override Update.
    • In KMST, her Noon, Sunset, and Dawn forms sported a whopping 500% PDR while Midnight had 300%. However, this was changed in the live version so all of her forms now have 380% PDR.
  • This is the first boss to have additional failure conditions rather than running out of time or lives.
  • This is the second boss that is actually an ally to the player. The first was Cygnus, who too became corrupted in the fabricated alternative timeline.
  • This is the first boss to use a multi-track BGM, where several BGMs play simultaneously and swap according to specific conditions. In Phase 2 when Seren swaps forms, the background and BGM change as well, with the BGM continuing where the previous form's BGM left off.
    • The Akechi Mitsuhide boss battle works in a similar way when he casts Overwhelm, but the BGM did not continue where the previous BGM left off until a recent patch.

References

  1. ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 Estimated, may not be 100% accurate
  2. ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 Chosen Seren's Midday, Dusk, Twilight, and Dawn forms all share an HP bar.
  3. ↑ Shade Extreme Seren Clear (GMS First)
Monsters
Monsters
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