Himmel and Hölle are a matched pair of Varunium swords—a straight sword and a katana—first carried by 
Sun Jin Kaisara and later stolen and wielded by 
Forza Ninetails. Their gentle orange glow and use in Sōyō-Ryū make them among the most recognizable Templar weapons of the modern era.
The pair
- Himmel — a straight sword used for fluid maneuvering, redirection, and flowing combinations
- Hölle — a katana used for heavy strikes, committed cuts, and punishing finishing blows
Together, the blades form the asymmetrical weapon pairing associated with Sōyō-Ryū. They are the only currently named example of this katana-and-straight-sword configuration.
Material and appearance
Both blades are forged from 
Varunium Steel, the sacred Templar metal created from ore enriched by the Red Sun’s cosmic radiation. In Templar myth, that power ultimately descends from 
Varuna, making the swords more than exceptional weapons: they are portable expressions of the same force from which Templar magic originates.
Himmel and Hölle emit a gentle orange fuzzy glow. The illumination appears to live within the metal rather than shine across its surroundings, giving the blades a contained, almost living presence.
Presented to Kaisara
The pair were given to Sun Jin Kaisara as a ceremonial gift marking her rise to the rank of 
Redken. In her hands, they became both symbols of Nightfall authority and practical instruments of her reputation as a renowned sword dancer.
Kaisara wielded Himmel and Hölle through Sōyō-Ryū, balancing Hölle’s crushing katana strikes against Himmel’s more graceful movement and control. Their contrasting roles allowed her fighting style to appear flowing and acrobatic without sacrificing brutal stopping power.
The RD10-003 program
Kaisara later entrusted the swords to 
RD10-003 as a temporary donation to Sun Jin weapons research. The program studied the Varunium pair as part of an effort to understand—and eventually reproduce—the extraordinary qualities of Templar weaponry.
During that program, the captive Forza Ninetails was equipped with Himmel and Hölle for live field testing alongside the 
Gotanenks Armor. He was drugged and mind-controlled into compliance while the researchers measured the equipment’s performance under real combat conditions.
Stolen by Forza
When Forza broke free from RD10-003, he took Himmel and Hölle with him. What began as equipment forced upon him by his captors became his signature weapon set throughout the Red Sun Rising saga.
Forza’s possession of the pair creates a complicated chain of meaning: the swords remain relics of Kaisara’s Redken authority, artifacts of Sun Jin experimentation, and instruments of Forza’s captivity and eventual escape. Through them, his combat identity remains visibly tied to both Kaisara’s influence and the institution that weaponized him.
Relationship to Sōyō-Ryū
Sōyō-Ryū does not require Varunium weapons, but Himmel and Hölle are its defining named pair. The style uses Hölle for weight and impact while Himmel carries movement, redirection, and connective flow. At full speed, the result resembles a sword dance: graceful and acrobatic in silhouette, devastating in execution.
Other paired blades
Himmel and Hölle are not the only Varunium katana-and-straight-sword pair. 
Amos possesses an unnamed set that glows dark purple and is likewise suited to Sōyō-Ryū. Himmel and Hölle remain distinct as the only named pair and through their specific history with Kaisara, RD10-003, and Forza.
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