Beginner Friendly, Advanced-Level Price. Sayori, aka Halfbeak, is an incredibly delicate fish to handle that requires some of the most meticulous preparation due to its hundred of hair-like bones. After filleting, silver skinning, and quickly salt curing, this particular fish is unique in its texture, and makes for a wonderfully delicious bite of nigiri. It is frequently some of the most expensive fish in any chef’s inventory.