Hibiki & Chikagi

Azumi-no-Isora is a sea deity whose name does not appear in historical texts like the "Kojiki" or "Nihon Shoki." Instead, his name is found primarily in the folklore of northern Kyushu, Japan. Having spent eons living on the ocean floor, he is said to have been grotesque in appearance, his whole body encrusted in oysters and abalone. In picture scrolls and kagura dance performances, he often appears with his face hidden by a white sheet.

Long ago, Empress Jingu summoned all the gods of Japan. Azumi-no-Isora alone failed to appear. So ashamed was Isora of his own hideous visage that he staunchly refused to go out in public. The gods, unsure what to do, devised a plan to perform ceremonial kagura music to entice him, knowing of his fondness for that sound. Lured by the melody, Isora finally emerged from the sea and presented Empress Jingu with two precious gems.

These twin gems, the Tide-Flowing Pearl and Tide-Ebbing Pearl, were the secret treasures of Wadatsumi, the god who oversees the tides.

First Ascension: Hibiki & Chikagi

Height/Weight

(Hibiki): 154cm/44kg

(Chikagi): 157cm/45kg

Origin: Magician's Box

Region: Japan

Alignment: Lawful-Good

Sub-Alignment: Human

Gender: Female

"Welcome to Ahnenerbe!"

"It doesn't look like Ahnenerbe at all, though..."

Hibino Hibiki

A first-year high school student working part-time at the Ahnenerbe Café. She puts her hobby of cooking and baking to good use at work, but she is absolutely useless at cleaning, so she relies entirely on her friend for that. Her generally chill, easygoing demeanor tends to confuse people around her, but she's as harmless as she is kindhearted. She also boldly challenged the once-cool and unassailable Katsuragi Chikagi in the past, eventually winning her trust. Now she enjoys taking care of Chikagi, who's lost all traces of that cool demeanor.

She is, in fact, a holy scripture created by a certain vampire, and when wielding her true power, she transforms into a young man dressed in white.

Katsuragi Chikagi

A first-year high school student working part-time at the Ahnenerbe Café. Her inferiority complex, triggered by her completely perfect older sister, drove her to act like the ideal honor student, driving people away before they could get close to her. Now she revels in laziness, spending her days lying around and snacking. She might act crude and make no effort to hide her lackadaisical side, but when she's forced into action, she throws herself into it completely...which often leads to more trouble. She keeps a watchful eye on Hibiki, who might go off and do who knows what if left unchecked...or so she claims.

Though born into an ordinary family and average in most ways, she also has a tendency to open things best left alone.

Isora's Dance: A

A sacred ritual dance of yore closely tied to the gods; it is said the act of dancing is a Mystic in and of itself. Its origin is said to date back to when Isora, who deeply loves kagura ceremonial music, was taught the long-lost dance of Ame-no-Uzume. Incidentally, both Hibiki and Chikagi have no rhythm whatsoever.

Gate of Wadatsumi: A

A gate said to lead to Wadatsumi-no-Miya, the residence of the sea god Wadatsumi. Should one succeed in opening this gate, they might gain access to the power of the eternal realm of Tokoyo. Fujiwara-no-Hidesato once passed through this gate, later returning, his arms loaded with treasure that included a bale of rice which never runs out.

Tide-Flowing Pearl/Tide-Ebbing Pearl: A

The gems of the sea deity, said to grant the power to freely manipulate the flow of the tides. Whoever possesses these pearls, the legends say, can use tides to wash away vast armies and even part the seas to clear a path. Chikagi is responsible for the Tide-Flowing Pearl, while Hibiki handles the Tide-Ebbing Pearl...although they do get them mixed up sometimes.

Second Ascension: Azumi-no-Isora

Height/Weight

(Hibiki): 154cm/44kg

(Chikagi): 157cm/45kg

Origin: Taiheiki, Hachiman Gudo-kun

Region: Japan

Alignment: Lawful-Good

Sub-Alignment: Earth

Gender: Female

Noble Phantasm: Sea-Parting Tidal Pearls

Rank: A

NP Type: Anti-Army

Range: 1-99

Maximum Targets: 10,000

The "sea boundary" is the path connecting land and sea, sealed in mythology when Yamasachi-hiko and Toyotama-hime parted ways. But could these gems, said to cleave the sea and open the path, actually be the key to the gate that sealed this very boundary? Toyotama-hime's residence, Wadatsumi-no-Miya, lies in Tokoyo, the divine world itself. If one could open the gate and reach it, they would gain the immense power that flows from the castle.

When Azumi-no-Isora holds up the gems, the gate to Tokoyo opens. The torii gates emerge one after another from the sea, each connecting directly to Wadatsumi-no-Miya. Every time the magic power released from the gems passes through a torii gate, it grows more powerful until finally it becomes a great whirlpool that swallows all enemies.

This Noble Phantasm takes the legend of sinking tens of thousands of enemy soldiers into the sea and revives it for the modern era.

That which dies with the dawn and is reborn with the night. The most brilliant light in the night sky, called the goddess of plenty or the Celestial Wolf. A celestial beacon deified by ancient sailors, this star is another facet (Alter Ego) of Azumi-no-Isora.

As a star god, Isora is the deified concept of a star seen from Earth, not a god from beyond. How this works within the Age of Gods remains unknown, but this facet was born from the prayers of people, causing "it" to be unceremoniously washed ashore on an unknown coast.

There, it had what was likely a fortunate encounter. A girl named Yuta found it, named it Isora, and so they began living together. Like a child guided by an older sister, Isora learned about the world around him, one discovery after another. Questions about where he came from or who he truly was were gradually forgotten. He believed he had found something in truly beautiful in his life, just like that star he looked up to in the sky.

That is why Isora, upon losing Yuta without rhyme or reason, never returned to the surface again. He desired only to dwell alone, at the bottom of the sea.

Many, many years later... The Divine Spirit Azumi-no-Isora, decaying in the depths, gained the opportunity to be summoned as a Servant.

"...I'm doing this on a whim. I couldn't care less about this planet's future."

But on that day, this reclusive deity would encounter two stars...

In scroll paintings and kagura performances, Isora appears with his face concealed by a white sheet. This is not to hide an ugly countenance, but rather to contain a brilliance too dazzling to behold. After this encounter at the Nagasaki Singularity, Isora awoke as a Divine Spirit. In doing so, he gained a brilliance as great as that star rising from beyond the horizon, watched over by Empress Jingu.

Third Ascension: Sirius

Height/Weight: 154cm/44kg

Origin: Taiheiki, Hachiman Gudo-kun, Magician's Box

Region: Japan

Alignment: Neutral-Balanced

Sub-Alignment: Star

Gender: Unknown

This is reintegration of the Spirit Origin Isora after he voluntarily split himself apart, with the holy scripture of Triten (Hibino Hibiki's true form) serving as the base. Unlike Hibiki, who uses most of her functions to foster humanlike traits, this form reflects the significantly enhanced physical abilities and magical power of the combat-focused Triten. Katsuragi Chikagi, who was absorbed into this form, remains a conscious presence nonetheless, delivering merciless burns whenever Sirius steps out of line.

The holy scripture of Triten is a model of the universe born from the attempt by noble vampires, known as the Twenty-Seven Dead Apostles, to prove the existence of God. Concealed deep within a labyrinth, they unexpectedly came into contact with Katsuragi Chikagi, who appeared in its innermost depths. They then took on human form and escaped to the surface under their own power.

This time, they were summoned alongside Chikagi as a Pseudo-Servant. The likely reason is that Triten—essentially a human-sized universe—was the optimal vessel to receive the Divine Spirit of the star, or so we are to believe.

What thoughts would cross the mind of the devout believer Caubac Alcatraz upon learning that the holy scripture he crafted had come to house a god?

Along with the change in their Spirit Origin, the Noble Phantasm has also been sublimated into Starlit Marmalade. By passing through the Gate of Eternity, they transform their body into a mass of energy, striking down enemies with the speed and power of a meteor, making it Sirius's most powerful offensive NP. Their brilliance, as if returning all things to a primordial state, evokes the starry sky beyond the telescope... A swirling sea of marmalade.