The protagonist finds himself inexplicably transmigrated to a primitive society in another world. Here, the elves are still a group of monkeys jumping on the trees. Here, the dragons are just a group of flying lizards. Here, the Titans are just a group of struggling on the line of life and death. The protagonist thought with joy that this would be a story of farming. But as he got to know the world better, he discovered...it turns out...he is also taking care of the important task of creating history.