Millium Orion - SD Model (Sen III)
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Roselia Millstein (ローゼリア・ミルスティン), also known as Crimson Roselia (緋のローゼリア), is introduced as the elder of the Hexen Clan.


Roselia appears as a young girl with blonde hair long enough to touch the floor and an archaic way of speaking. She is the Holy Beast sworn to protect the Ark Rouge, titled the Winged Searing Beast (《翼ある灼獣》ローゼリア).


The name 'Roselia' originally belonged to the Holy Beast that fused with the elder of the Kinship of the Blaze (Hexen Clan) in order to handle the Great Collapse.[4] The current Roselia is the second iteration; she was originally a familiar in a position similar to Celine's and after the first Roselia was betrayed by the Gnomes and perished in S.306,[Note 2] she followed her predecessor's instructions to visit the Luna Sanctuary to inherit her predecessor's memories and mission.[4]

Roselia collaborated with Emperor Hector Reise Arnor I to defeat the Dark Dragon. Together with the head of the Gnomes, they sealed the Hector's Deus-Excellion Testa-Rossa in the depths underneath Valflame Palace.

War of the Lions

Main article: War of the Lions
Awakener of the Silver Knight - Flashback (Sen III)

Roselia and Lianne Sandlot in front of Argreion.

The next record of Roselia's activities are dated S.942, when Roselia guides Lianne Sandlot through the trial to become the Awakener of Argreion, the Silver Deus-Excellion, at Lohengrin Castle.[2][5] Ten years later, she guides Dreichels Reise Arnor through the trial to become the Awakener of Valimar, the Ashen Deus-Excellion, near Trista.[6][7][Note 3] Lianne Sandlot succumbs to mortal wounds during the conclusive battle with the Vermillion Apocalypse. Roselia took Lianne's corpse[2] with her back to Elin, leaving behind only rumors regarding the disappearance of Lianne's corpse. Half a year later, Lianne revives before Roselia's eyes and leaves Elin to wander through the world.[2]

Vampire Murders

Main article: Red Moon Rose
Roselia - Fine-tuning Sketches 4 (Sen III)

Concept art of Roselia as described in the Red Moon Rose novels.

Around S.1000,[Note 4] Roselia collaborated with the Septian Church to eradicate the rampaging vampires in Heimdallr. The last remaining True Ancestor of the race herself, Roselia defeated the Elder Vampires single-handedly and ended her own bloodline of vampirism. The novel, Red Moon Rose, is based on these events.

Although Roselia stayed on good terms with Lianne Sandlot for centuries until S.1186, when the latter met the Grandmaster of Ouroboros and decided to cut ties with Roselia. They would not meet again until twenty years later.[9]

Trails of Cold Steel III and IV

Young Vita and Emma - Flashback (Sen III)

Roselia in her more mature form behind Vita Clotilde and Emma Millstein.

The two other witches in the series, Vita Clotilde and Emma Millstein, were both trained by Roselia. Vita lost her parents at a young age. She displayed great affinity for magic and Roselia adopted her as one of her disciples. Vita's talents make her Roselia's greatest disciple to date. Emma lost her mother in an unfortunate accident and was raised by Roselia instead. She came to see Vita as her real sister. She also created them their familiars: the bird-like familiar Grianos for Vita and the cat-like familiar Celine for Emma. It is revealed that creating these familiars requires Roselia to put in her own life force, which in turn renders her younger again.

With the turbulent times in Erebonia of S.1206, Roselia decided to make an appearance before the protagonists and team up once again with the Septian Church, this time with Dominion Thomas Lysander. As the elder of the Hexen Clan, Roselia is tasked with the safekeeping of the Ark Rouge, the Sept-Terrion of Blaze.

Character Notes

Trails of Cold Steel III

Roselia Millstein
Roselia Note (Sen III)
Hexen Clan
A young girl in strange clothes who appeared before Rean. He seems to be the only one who can see her...
Elder Witch
Elder of the Hexen Clan and revealed to be Emma's grandmother, Roselia. She is also Celine's creator and Vita's mentor.
Red Moon Rose
The vampiric main character of the novel 'Red Moon Rose' was based on her. She is the last of the True Ancestors.

Roselia Note (Sen III)

Trails of Cold Steel IV

Towa Herschel - SD (Sen II)
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Trails of Cold Steel IV

Name Cost Upgrade materials Acquired
48px Merseburger
Initial gear
STR+1435 ATS+160 RNG+5 必殺2%


Trails of Cold Steel IV

Name Cost Delay Acquire
Craft (Sen III Skill)
80 30 Initial
魔法攻撃(威力E ブレイクD 崩し有効):
Craft (Sen III Skill)
40 30 Initial
魔法攻撃(威力A ブレイクB 崩し+20%):
S Craft (Sen III Skill)
100+ 40 Initial
魔法攻撃(威力4S+ ブレイクD 崩し無効):全体

Brave Order

Trails of Cold Steel IV

Name BP Effect
Mystic Art: Scarlet Song
1 Arts' EP Cost -100% (4 turns)
ATS raised (L) (1 turn)


Trails of Cold Steel IV

Towa Herschel - SD (Sen II)
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Roselia was revealed as someone who appears before Rean Schwarzer on numerous occasions, but his companions are unable to perceive her existence. She is not a normal human being and her powers are unlike any that have appeared so far. Her relation with Azure Siegfried and Rutger Claussell is unknown, but what the three have in common is that they should not exist.[10]


Trails of Cold Steel III

Trails of Cold Steel IV




  1. In S.1206, Roselia says she is "roughly 800 years old".[2]
  2. On 27 August, S.1206, Roselia says it occured "900 years ago".[4]
  3. The trial took place after the Palatinate Knight was destroyed and before the infiltration of the Infernal Castle on July, 1st.
  4. From S.1206, they are said to have taken place "200 years ago" and "50 years after" the War of the Lions.[8] The novel series that is based on these events, Red Moon Rose, is set in approximately S.1010.


  1. Amber Lee Connors Twitter (accessed: October 22, 2019) at @AmberLeeConnors
  2. 2.0 2.1 2.2 2.3 Trails of Cold Steel III, Finale: "For Whom the Bell Tolls", 07/18.
  3. Trails of Cold Steel IV, Final Curtain: " Flower Petals at Blaze's End", 09/01.
  4. 4.0 4.1 4.2 Trails of Cold Steel IV, Act III: "Hour of the Lions ~Whereabouts of Light~", 08/27.
  5. Trails of Cold Steel III, Black Records, Volume 3.
  6. Trails of Cold Steel II, Black Records, Volume 5.
  7. Trails of Cold Steel III, Black Records, Volume 4.
  8. Trails of Cold Steel III, Chapter 4: "Radiant Heimdallr", 07/16.
  9. Trails of Cold Steel III, Chapter 3: "Pulse of Steel", 06/19.
  10. Toshihiro Kondo. Dengeki PlayStation, Issue 644.


  1. 緋杖メルゼブルク, literally 'Crimson staff Merseburger'.[3]
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