**Game tester Lu Fengyi** accidentally binds to a **"Deduction Simulator"** and is transported to the **void between two realms**. There, he establishes **Twilight Fortress**, bridging the **cultivation world** and the **lord-dominated world**. Leveraging the simulator's time-acceleration capabilities to merge the rules of both realms, he breeds **spirit beasts** and assembles a **hybrid task force**. Starting with the **Moonlit Lake Annihilation Campaign**, he gradually unlocks cross-dimensional systems like **interdimensional caravans** and **Beast Soul Armor**.  

During his journey, he teams up with **Elven Princess Aelia** to thwart the **Blood Fiend Sect's conspiracy**, awakening the **primordial chaos beast Xiangliu** . The story culminates in a climactic battle at the **Space-Time Rift** against the **Blood Fiend Patriarch** and the **Abyssal Lord**. Though victorious, Lu discovers a cryptic clue about the **Third Domain**, propelling him into an even grander odyssey.