One night, the seals on the mountain began to crack. The air turned to ash, and the sound of iron scraping against stone echoed from the depths. The village elders panicked, shouting their traditional battle cries, but the gates wouldn't budge. The "Work"—the ritual required to seal the gates—was failing because they were trying to fight the darkness with brute strength.

: Taki Reki often posts production sketches and updates for DI-WORK projects on these creator support platforms. Taki Reki | Artist Profile - Danbooru

If you meant a specific title that is slightly different from what you typed, could you provide more details? Knowing if it's a (fan-made work) would help me find exactly what you need.

The gate, named 'Taki no Mon' (Waterfall Gate), stands imposingly, its architecture a testament to the craftsmanship of the era. Its design is inspired by the magnificent waterfalls ('taki') scattered across the region, each with its own story and historical significance.