Dioscuri

Once there was a set of twins (Dioscuri) who ascended to the heavens to become the shining constellation Gemini...

The name Dioscuri means "children of Zeus."

According to the "Catasterismi," written around the 3rd century B.C., the constellation Gemini was known as Dioscures, consisting of Castor and Pollux. The two appeared in the land of Laconia (the southeastern part of the Peloponnese peninsula) and later ascended to the heavens. It is said that the loving bond these siblings shared was unparalleled.

To immortalize the siblings' closeness, Zeus, king of the gods, combined stars from two independent constellations into a new constellation known as "the Twins."

Height/Weight: 175cm, 57kg (Sister), 175cm, 67kg (Brother)

Origin: Greek Mythology

Region: Europe

Alignment: Chaotic-Balanced

Sub-Attribute: Heaven

Gender: -

Dioscuri are always together. It may be fair to call them inseparable. Though they are two people, they make up a single Heroic Spirit.

Originally the Dioscuri were ancient twin gods that took the form of young horsemen, or even horses themselves. They were said to be saviors for humans who were in danger, such as those in battle or at sea. The twin gods were sometimes called "the two gods," but the twins never had individual names, and it wasn't until in the book of hymns of the gods written during Homer's age that the names Kastor (Castor) and Polydeukes (Pollux) were recorded.

They carried the title "Anakes (lords of kings)," and in later ages, were regarded more as guardians of sailors thanks to their appearance as members of the Argo's crew in the "Argonautica." The flash of light that discharges on ship masts during storms, called "St. Elmo's fire," was believed to be the twins manifesting to guide ships at sea.

As they are already ancient Divine Spirits, the Gemini possess a unique characteristic upon their manifestation: while being a single entity, they retain two separate bodies, and each of their bodies retains the attributes of a different class.

The elder brother, Castor, who was not the child of Zeus, harbors bitter resentment for the gods who led humans to ruin. He possesses the characteristics of an Avenger. The younger sister, Pollux, Zeus's immortal daughter, is a Saber who leverages her invincible physique to facilitate her indefatigable application of her masterful sword work.

While the Gemini's Spirit Origin is registered as a Saber because of their nature as a single entity, they function as a dual-class Servant. This unique characteristic was likely allowed because they are a Divine Spirit Servant.

Core of the Twin Gods: B

A skill possessed by both twins.

Normally, the skill should be at least rank A or nonstandard because of their status as ancient twin deities, but the Greek myth of the Gemini that later became so widespread caused the skill to instead manifest at rank B. This also likely happened because later tellings specified that Castor lacked divine blood.

Star of the King of the Gods: A

A skill that represents the two individuals merging into a single entity and becoming a constellation.

Guardian of Sea Voyagers: B

Protects those who travel on ships.

The twins' presence rouses those about them, instilling them with hope and determination to overcome the challenges facing them. It is similar to Voyager of the Storm, and originally was a compound skill that included Tactics and Charisma.

Mana Burst (Light/Ancient): A

The twin deities are said to be the very representation of St. Elmo's fire, the strange light sometimes observed at sea. This is quite unlike the pseudo-Mana Burst many saintly Servants possess. Magical energy is discharged as light, and increases the target's combat strength.

『Dioscures Tyndaridae』

Rank: B

NP Type: Anti-Personnel

Range: 0-3

Maximum Target: 1

Poetic Praise of the Twin Gods.

Power that combines Pollux's skilled swordsmanship with Castor's rage against the gods for the devastation they cause. It is a most devastating combined attack the twins unleash. This attack is made possible by the coordination born from the twins' implicit trust in each other, and so has become their Noble Phantasm.

Additionally, when its True Name is revealed, the two almost completely regain their Divinity from their time as ancient deities, temporarily elevating this attribute to its maximum rank. Because this attack utilizes the near-perfect magical energy of a Divine Spirit, it ignores various physical and magecraft-based defenses, utterly obliterating its target.

The Gemini materialized as a deity at the time of the Fifth Lostbelt's inception. However, they were defeated in their battle against Kirschtaria Wodime, and after temporarily losing their life, they formed a contract with Kirschtaria as a Lostbelt Servant. By forming a contract, Castor learned of the version of their legend native to Proper Human History. Though the myth was from Proper Human history, Castor could not help but harbor a tremendous hatred to humanity for what he saw as their looking down upon him. Pollux, too, shared that hatred after learning what her brother was made to experience.

Consequently, both siblings came to be dominated by their hatred of humanity, leading to their brutal violence toward Chaldea and the citizens of Olympus.

On the other hand, the twins who were summoned to Chaldea as Servants of Proper Human History are not so violent as the twin deities of the Lostbelt. Even though Castor possesses requisite mentality to establish his Spirit Origin as an Avenger, his younger sister Pollux's more calm and demure personality than that of her Lostbelt Servant equivalent is able to placate the older brother's wrath. You can mostly ignore the older brother...up to a point.