There is a kind of person in the world who spends his whole life doing one thing - protecting. They take on the task of their employer to protect a person, a treasure, or even a letter left to their descendants a hundred years later. Of course, you need to pay an expensive commission. No one knows their hiding place. When you want to entrust a task, you only need to hang a paper crane on your door, and they will appear. They are called - Oath Keepers.