Linna Coetequix

* Updated
* Welding Mask
* Original
* Original Welding Mask

"*I'm all about optimism. Negativity can suck it!*"
— Linna to Shira, Chapter 3
Linna Coetequix is a major character in *Augma II Arc I*, a 2nd-year student at Xentio Academy, and the third member of the Comfy Club.

## Profile

*Linna Coetequix, 16. Very energetic and curious about things she doesn't know much about. However, that curiosity landed the Comfy Club into a strange situation. But why does she seem so easygoing about it?* — The official Twitter

## Appearance

Linna is a 16-year-old girl with long red hair and green eyes. She wears a black and yellow coat with a Checker Board pattern over her green and blue shirt with an Asanoha pattern. She wears a red pair of gloves with a Asanoha pattern, a red skirt with a Sea (Saihaga) pattern, and tights.

In Chapter 3, she temporarily wears an iron mask.

## Personality

Linna is an outgoing and optimistic person, willingly choosing to join the Comfy Club despite how boring it seems. She is curious, spending all night researching Aeroseven's bankruptcy and also enjoys physical investigations despite any risks. Sometimes, she displays a sadder side of herself, possibly due to trust or family issues.

## Plot

### Azure Dream (1.NF3)

In Chapter 1, the present day, Shira Yamano meets Linna, who saves him from falling down the set of stairs at Xentio Academy. Linna wishes to join the Comfy Club and Shira and Loui accept her application.

### Angenclocken (2.G3)

In Chapter 2, after Shira and Kat arrive at school early, Shira enters the Comfy Club's room to explain to Linna and Loui who Kat is and how he met her.

### Ragmir (3.B2)

In Chapter 3, Shira loses a chess match with Kat and must leave school to go throw a broken microwave away. Linna accompanies him in order to talk about the Club Festival.

After throwing away the microwave outside the café, Shira and Linna enter the café to discuss Linna's investigation of Aeroseven's bankruptcy. They decide to investigate Fenrir Storage, a storage company owned by a company that was owned by Aeroseven, and take a taxi to District C.

After arriving at Fenrir Storage, they break into two storage units. Linna breaks into the first storage unit and plays around with a flamethrower. Then they break into the second storage unit and encounter Ragmir, also known as "Rags," a 2nd-year student at Xentio who is also investigating Aeroseven's bankruptcy. Rags points out a crate of blue, pulsating apples. Shira steals one and then the alarm goes off, sealing off the entrance of the storage unit. The three escape through the window and run away from Fenrir Storage. Shira notices a door to the Verim Chasm and decides to take them into it.

### Verim Chasm (4.C4)

In Chapter 4, after walking for two hours in the Verim Chasm, Linna points out a door that leads them back to Xentio Academy. Shira decides to take Rags up the stairs to the Comfy Club's room to sign him up for the club. After signing up, the three of them take the elevator down and decide to go to Shira's house.

After a few more hours, they arrive at Shira's house. They encounter a masked man who leaves without introducing himself.

### Verynstryfe (5.QB3)

In Chapter 5, Shira has a discussion with Linna and Rags to swear off illegal investigations. Shira and Kat leave the house to buy more food.

After Shira returns to his house using Verynstryfe, he sees Linna, Rags, and Kat sleeping. When Shira leaves, Linna wakes up to switch where Rags and Kat sleep.

### Room Theory (6.QB5+)

In Chapter 6, after Shira walks down the stairs, Linna talks to Shira about how the elevators are broken.

## Abilities

*Linna Coetequix is a former Nehanzou user, current Augano user. For more information, see Terminology, Circuitry, Nehanzou and Etherius Equation.*

### Nehanzou/Etherius

Linna's past abilities as a Nehanzou user are unknown, but even after having given up the Nehanzou, some of its effects and abilities still linger in her as an Etherius user. For one, as a Nehanzou user she was immortal, and even after having given up the Nehanzou and immortality she still has an extended lifespan of 5x the average human due to the Etherius. Another is the Infernum's Utero, a nonphysical forge which took physical form when she switched circuitries.

Seiva describes Linna as "an anomaly," following neither rules of the Nehanzou nor Etherius. She also lacks the Augano tier of the Etherius (not to be confused with 4-dimensional beings of the same name).

It is known that members of the Bosatsu (who are mostly, if not all, Nehanzou users) receive training and that Linna has years worth of firearm training. It is unknown if these two things are actually related to each other however.

### The Infernum's Utero

> “I require no call — my forge is always burning. It will only cease its operations once my heart succumbs to death — never to make another sound.”
> “Infernum's Utero不朽不滅地獄鍛冶場 — Blacksmith of the Divine Red Shade神赤闇の鍛冶師.”
> It was a statement of gentle fury — a declaration of war without prayer.
>
>

The Infernum's Utero is the name of Linna's forge, capable of creating and summoning firearms from Gehenna while using her lifespan as fuel. It first took physical space at Fenrir Storage as a warehouse full of weapons but she seems to be able to access the weapons and ammunition it creates wherever as well as being able to summon the forge directly.

The things created by the forge use "the bones of decaying gods" as material, which grant the bullets she fire the ability "to burn hotter than the sun." Assuming she is telling the truth, then her bullets can either range from ~5,500°C (Surface of the sun) to ~15,000,000°C (Core of the sun).

> “You forget... that I am a blacksmith.”
> As the reoccurring statement is captured in silence, intimidating the atmosphere around them — the tenebrous sky lights up from a descending object similar to a meteor.
> That object being the proof of her masterful smithing skills...
> ...and her testament as the transcendent blacksmith who merged their very coil into the divine oeuvre — that damned Tartarean arsenal.
> Flesh and machine — ye who forsook the fleshen heart.
>
>

Linna's forge is also capable of forging replacement iron limbs.

## Trivia

* In the original script of *Arc I*, Shira calls Linna wielding a flamethrower "Coetequix of the Iron Blood." This was removed from later versions of the story but in the extended demo a reference to this remains. This was removed in later versions.

## References

1. ↑ https://nssdc.gsfc.nasa.gov/planetary/factsheet/sunfact.html