> Two hunters. Two systems. One unbreakable promise.  
>   
> Takahiro Kurogane and Sung Jin‑Woo grew up side‑by‑side in the backstreets of Seoul — one a brilliant tactician who could turn anything into a strategy, the other a quiet protector who would take any hit to shield a friend. Years ago, they made a vow: “We face everything together — no matter what.”  
>   
> That vow is tested in the infamous Double Dungeon, where death is certain and escape is impossible. When the statues close in, they choose not to run. In that final moment, two separate cosmic entities intervene — gifting them twin systems unlike anything the world has ever seen.  
>   
> Now, as the Shadow Monarch rises and the Architect of Realities bends the laws of existence, their bond becomes the key to rewriting fate itself. Together, they will walk the same path as in the original story… but every choice they make will ripple outward, saving lives that were once lost — and drawing the attention of powers that were never meant to notice them.  
>   
> But in a world where every victory changes the future, one question remains:  
> If you could rewrite destiny… how far would you go to keep your promise?

A mysterious system granted to Takahiro Kurogane by an unknown cosmic faction during the Double Dungeon incident. Unlike the Monarch's System, it focuses on rewriting the laws of reality, fusing skills, and creating adaptive constructs. Its interface appears as shifting golden runes and diagrams suspended in mid‑air.


The growth‑type system bestowed upon Sung Jin‑Woo, enabling him to level up infinitely, summon shadows, and command them as an army. In this AU, it evolves in tandem with the Architect's Codex, creating unique synergy effects.


The rare coexistence of two separate, high‑tier systems in close alliance. Their combined presence produces unpredictable battlefield phenomena, often amplifying each other's abilities beyond intended limits.


Lawscript Overwrite (Takahiro – Active Skill)


Temporarily alters the "rules" of reality in a localized zone. Can reverse gravity, slow light, or rewrite biological functions. Duration and scale grow with mastery.


Resonance Forge (Takahiro – Active Skill)


Summons weapons, armor, or constructs from pure conceptual energy. Each adapts mid‑battle based on Takahiro's tactical adjustments.


Apex Calculation (Takahiro – Active Skill)


For 10 seconds, Takahiro's mind runs infinite simulations, predicting every possible enemy move and forcing the most favorable outcome.


Genesis Rewrite (Takahiro – Ultimate Skill)


Overwrites the battlefield's entire reality layer, creating a custom dimension where every law favors Takahiro and cripples his enemies. Can only be used once per day.


Shadow Extraction (Jin‑Woo – Active Skill)


Allows Jin‑Woo to extract the shadow of a defeated enemy and bind it as a loyal soldier.


Domain of the Monarch (Jin‑Woo – Ultimate Skill)


Expands a shadow‑filled domain that boosts his army's power and suppresses enemies.


Founded jointly by Takahiro Kurogane and Sung Jin‑Woo. Known for impossible survival rates in high‑rank raids and for rewriting the battlefield itself. Attracts elite hunters from Korea and abroad.


An unnamed elemental specialist from overseas. Rumored to have been observing high‑level raids from the shadows, possibly seeking the Twin Systems for their own agenda.


Glossary