He Had 12 Coins… Then Built an OP KINGDOM With Summons, How?

What the story is about

After arriving in a fantasy world, Baron Lin Fong inherits the impoverished territory of North Wind and discovers a system that lets him build facilities, recruit heroes, and turn victories into resources. He uses its tools—and increasingly powerful allies—to develop his frontier domain while facing monsters, hostile factions, and the challenges of ruling its people.