Suddenly, strange structures appeared in the peaceful village. It was a dungeon! And the dungeon swallowed and destroyed everything in the village. You must rebuild the village and explore the dungeon. Go in to the dungeon, against potential dangers and rescue villagers to solve the problem.
There is no checkpoint. When you are falling, you come back to the village. Learn and grow to reach deep in to the dungeon.
Get help from rescued villagers, and native people in the dungeon. They will surely help you!