Brushing gently with the tip of the blade so as not to damage the delicate scales and the silvery slime, I remove the black membrane around the innards without breaking it. Push-cutting, which crushes the cells, is strictly forbidden. Using the yanagiba's whole length from heel to point, with a single draw-slice as swift as a gale, I'll cut off a see-through, bone-in sego-shi slice. (N1 lesson 158)