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Fortress of Steel

2 star costume

3 star costume

4 star costume

5 star costume

Class Knight
Role Tank
Atk Type Physical
Position Front
Grade ★★

This guardian knight carries a gigantic lance and shield. Endures the attack of enemies with absolute fortitude and disturbs enemy lines with her lance.


Why Demia? Demia is your classic disruptive tank. She fits perfectly in a party that needs a Physical Defense buff. She can also disrupt the backline by pulling them in, so any melee ally or herself can deal with them.

Whilst Clause has an active party Defense buff, her buff is passive, so the party gets the Defense and Physical Block at all times. All in all, Demia excels against Physical Damage Dealers, and is above average in overall tanking (a lot of players use her).

Pros and Cons[edit]

+ Can bring backline DPS to the front
+ Debuffs enemies' atk
+ CC
+ Buffs party's P.Def
+ Excels in Arena, and WB1
+ Great in Story Mode and Dragon Raids



  • Demia counters physical dealers, like Nyx, in the Arena.


Penetration Penetration[edit]

Mana Mana.pngMana.pngMana.png 11 sec Cooldown
Throws a spear at the furthest enemy, dealing 54,454 P.DMG and drawing the enemy in front of the hero. Then deals 36,375 P.DMG to enemies in range, stunning them for 3 sec.

 20 Skill Book: Beginner DMG is increased by 10%.
 60 Skill Book: Beginner DMG is increased by 15%.
120 Skill Book: Beginner Stun duration is increased by 2 sec.

Penetration Animation

Will to Win Will to Win[edit]

Mana Mana.pngMana.png 15 sec Cooldown
Upon blocking enemy attack for 15 sec, triggers a shockwave that deals 32,815 P.DMG to enemies in range, reducing their ATK by 20%.

 20 Skill Book: Intermediate DMG is increased by 10%.
 60 Skill Book: Intermediate DMG is increased by 15%.
120 Skill Book: Intermediate Enemy ATK reduction is increased by 50%.

Will to Win Animation

Steel Fortress Steel Fortress[edit]

Mana Mana.pngMana.pngMana.png 22 sec Cooldown
Upon DMG block during casting, jump attack DMG is increased by 7%. Also, deals 43,617 P.DMG to enemy and inflicts stun. After casting, jumps and attacks the enemy, dealing 161,035 P.DMG and stunning them for 4 sec. Gains immunity to CC while the skill is in use.

 20 Skill Book: Expert DMG is increased by 10%.
 60 Skill Book: Expert DMG is increased by 15%.
120 Skill Book: Expert DMG is increased by 25%.

Steel Fortress Animation

Spearhead Spearhead[edit]

All allies' P.DEF is increased by 6,318 and P.Block chance is increased by 250.

 20 Skill Book: Master DEF boost is increased by 10%.
 60 Skill Book: Master DEF boost is increased by 15%.
120 Skill Book: Master DEF boost is increased by 25%.

Transcendence Perks[edit]

Transcendence 3[edit]

Penetration Penetration[edit]

[Light] In exchange for 1 additional Mana Cost, pull in 2 enemies.
[Dark] All pulled enemies take 25% increased DMG from all sources for 10 sec.

Will to Win Will to Win[edit]

[Light] Mana cost is reduced by 1.
[Dark] Ally P.DEF is boosted by 20% for 10 sec after activation.

Steel Fortress Steel Fortress[edit]

[Light] Upon jumping into the air, charge at the target with highest ATK.
[Dark] While casting, all allies take 20% reduced P.DMG.

Spearhead Spearhead[edit]

[Light] P.DEF is increased by 20% and P.Block is boosted by 50%.
[Dark] Recovers HP equal to 40% of P.DEF upon blocking.

Transcendence 5[edit]

Demia Demia[edit]

[Light] ATK, DEF, HP +15% / P. Block +200.
[Dark] At the beginning of every battle, decrease the ATK of all enemies by 20% for 6 sec. This effect cannot be dispelled.

Unique Weapon[edit]

The Blue Light, Arpheus
The Blue Light, Arpheus
Star Value Value Value
Increases P.DEF of all allies by 4% Blocking an enemy attack has a 10% chance to recover 3% Mana and reduce Cooldown of all skills by 1 sec.
4.8% 12% 3.3%
★★ 5.8% 14% 3.6%
★★★ 7% 17% 3.9%
★★★★ 8.4% 21% 4.2%
★★★★★ 10% 25% 4.5%
  • Item introduction: One day, a vein exuding powerful mana was discovered in the territory of Ziltrion. While investigating, Demia found a blue ore, the likes of which she had never seen before. Numerous wizards and alchemists studied this mysterious ore with the characteristics of both gem and metal, but no one could figure out its identity. Jin, the blacksmith, however, had a different idea. As soon as he saw the ore, he offered Demia to craft powerful gears out of it, with a big smile on his face. With it, he forged a lance and a shield, glowing blue with mana and tougher than a diamond.

1st Skill Unique Treasure[edit]

Chest of Ziltrion
Chest of Ziltrion
Star Value
[Penetration] Increases ACC by 750, and CC ACC by 300 for the duration of skill.
★★ 430
★★★ 520
★★★★ 630
★★★★★ 750
  • Item Introduction: An old Chest passed own among the Ziltrion family as an heirloom. A photo album of all the family members, from the first to the current generation, is safeguarded by a strong spell inside this chest to protect the family's bloodline. Demia's mother is worried about her daughter, who decided to be the shield of Orvelia. Whenever Demia marches to the battlefield, she prays to this chest for her daughter's safe return.

2nd Skill Unique Treasure[edit]

Shield of Resolution
Shield of Resolution
Star Value
[Will to Win] Increases DMG by 50% and P.Weakness of the target by 10% for 10 sec.
★★ 14%
★★★ 17%
★★★★ 21%
★★★★★ 25%
  • Item Introduction: A wooden shield that Demia used as a child for practice. It's been used over a thousand times and is very worn out. Demia uses it to regain her composure when she feels like she has hit a limit. Her pride as a knight of Orvelia resurfaces when she sees this old, worn-out shield.

3rd Skill Unique Treasure[edit]

Aura of Protection
Aura of Protection
Star Value
[Steel Fortress] Mana cost is reduced by 1 and jump attack's Stun duration is increased by 1 sec.
★★ 2
★★★ 2.5
★★★★ 3
★★★★★ 3.5
  • Item introduction: A stone known to protect one's soul from being absorbed by evil. It only shines for a while at dawn, so it's hard to find. One day, when Demia was fired from battle, a comrade put this in her hands. Even though its a comrade that she can't ever see again...Demia always takes this stone when going out to the battlefield. She does her best to uphold her to to never let the sacrifices of her comrades be in vain.

4th Skill Unique Treasure[edit]

Hammer of Titan
Hammer of Titan
Star Value
[Spearhead] Increases DEF boost by 50%. All allies have their P.Crit Resistance increased by 100
★★ 140
★★★ 170
★★★★ 210
★★★★★ 250
  • Item Introduction: A ring handed down to the leaders of the Ziltrion family. It is decorated with a big blue jewel which was bestowed to the Ziltrions by the royal family of Orvel. It was passed down to the leaders as the symbol of the family's eternal loyalty, and these leaders became the vanguards of punishing traitors.

Soul Weapon[edit]

The Blue Light, Arpheus
The Blue Light, Arpheus
Cooldown Skill Activation Requirement Advancement Phase 1
Summons the soul of The Blue Light, Arpheus, increasing all allies' P.Crit Resistance by 300 and P.Block by 300 for 10 sec. Afterward, places [Mana Source of Blue Light] around self for 10 sec. For the duration of [Mana Source of Blue Light], deals P.DMG to enemies within range over 9 times and reduces their Mana by 300. At the end of duration, creates an explosion that deals P.DMG and silences enemies within range for 5 sec. 22 sec Charges up upon using Skills 4 times. Allies with [Mana Source of Blue Light] have their ATK Spd increased by 300 and recover 300 Mana every sec.
Available Use(s) Advancement Phase 2
7 Continuously dispels positive effects placed upon enemies that are within [Mana Source of Blue Light] and changes duration of Silence to 8 sec.
  • Soul Weapon Story: The identity of the mysterious material that later became Demia's lance and shield is none other than a fragment from the headstone of Arpheus, the Ancient Legendary Knight Long ago, the first ancestors of the Ziltrion Family found traces of rituals intended to appease spirits, deep within their mine. Believing the place was a mysterious sacred place, they paid their utmost respect and sealed the entrance to the mine to prevent outsiders from entering the site. After countless geographical shifts, the Ritual Headstone fell into slumber deep within the mine for a long time, until Demia, the descendant of the Ziltrion Family, unearthed it. None of the human wizards or alchemists could identify the property of this strange ore fragment, but Jin, the Dragon Blacksmith could sense the faint aura. Only he could recognize the enigmatic soul contained within the stone. "-So it chose her as its master." Jin crafted a special lance and shield out of the ore as if he was destined to do so. The weapon made only for Demia. She took up her lance and shield and protected the kingdom of Orvelia ever since. It was when she fearlessly charged toward her enemy for her kingdom and her princess. The Legendary Knight Arpheus appeared before Demia, emitting blue light. "-I, Arpheus, shall stand and fight side-by-side with this great knight of the Ziltrion Family."



  • Demia is 25 years old.
  • She is 184cm (around 6'0' feet)
  • Her birthday is January 30th.
  • Her constellation is Guardian Mertis.
  • She likes righteous monarchs whom she can serve.
  • She dislikes weak minded people who betray others.
  • Her full name is Ziltrion Si Demia.
  • Her full name was slightly modified and changed.
  • It is also revealed that she is in charge of protecting Scarlet, thus she, like Clause, is a royal guard/knight of Orvelia.

Demia is mentioned in Scarlet's story from the patch notes:

“Demia. Are you out there?”

And a woman answered back with a low tone from outside of the chamber.

“Yes, your highness. I Demia, Orvelia Knight is waiting for your orders.”

“Clause, Demia, as soon as I step out from this chamber, gear up for the journey.”

Clause answered with a shivering voice.

“…Your Highness, allow me to say.. Going out by yourself..?”

Scarlet answered back without hesitation.

“Yes, I will meet them in person.”

Hero's Backstory

Ziltrion Si Demia. The commander of the Guardian Knights of Orvel. She is a mighty and dignified knight who wields a lance and a giant shield. It is said that penetrating her shield is next to impossible. As a knight commander, she cherishes her subordinates, and is prepared to perform any task in service of her land. Having felt a recent change of atmosphere within the royal palace, she hopes to quickly appoint Clause as the next commander so that she may protect Scarlet from the aggression of the nobles.


Demia Gallery

Knights Knights Aselica, Clause, Demia, Dosarta, Glenwys, Jane, Loman, Morrah, Neraxis, Phillop, Ricardo, Shakmeh, Sonia, Taily
Warriors Warriors Bernheim, Chase, Dark Lord Kasel, Gau, Hilda, Kasel, Kirze, Naila, Nicky, Priscilla, Rebel Clause, Riheet,Scarlet, Seria, Theo, Viska
Assassins Assassins Epis, Erze, Ezekiel, Fluss, Gladi, Gremory, Kibera, Laudia, Mirianne, Nia, Reina, Ripine, Roi, Tanya
Archers Archers Arch, Dimael, Estelle, Luna, Requina, Selene, Shamilla, Talisha, Yanne, Yuria, Zafir
Mechanics Mechanics Annette, Cecilia, Chrisha, Crow, Hanus, Kara, Lakrak, Miruru, Mitra, Oddy, Pansirone, Rodina
Wizards Wizards Aisha, Artemia, Cain, Cleo, Dakaris, Esker, Isolet, Lewisia, Lilia, Lorraine, Lucikiel, Maria, Nyx, Ophelia, Pavel, Veronica, Xerah
Priests Priests Baudouin, Cassandra, Evan, Fallen Frey, Frey, Juno, Kaulah, Laias, Lavril, Leo, Lucias, May, Mediana, Rephy, Rehartna, Shea