80,000 People Isekai’d Together — While Others Cry, He Starts BUILDING KINGDOM From SCRATCH!

What the story is about

When the city of Leeching and its 80,000 residents are transported to a dangerous otherworld, Mayor Chin Jang Wo tries to keep the population organized and alive. With Su Xiaoya’s mysterious system enabling contact and trade across the barrier, the city combines its people’s skills with local magic and resources to build industry, alliances, and a path toward returning home.