The Folk Corpse Retriever

What rules govern the retrieval of corpses? Which bodies can be fished out, which must be left alone, and which are impossible to retrieve? Before I became a corpse retriever, I had no idea this trade had so many rules.

Ever since I joined the profession, my peaceful life has been thrown into turmoil, and one reclusive sect after another has returned to the world. At the same time, a charming young bride, the cherished daughter of a hidden clan, and a beautiful corpse sealed beneath the sea for a hundred years have all burst into my life!