How to make snakehead sashimi and how to eat it?

How to make snakehead sashimi and how to eat it;

Soak snakehead in white vinegar, then wash away the vinegar smell with clear water, slice the fish with a sterilized knife and pier, and put it in a clean plate with ice cubes.

2. Wash and shred the lettuce and put it on a plate.

3. Mix soy sauce, vinegar, sesame oil and mustard into a sauce.

4. Sashimi, mustard sauce and lettuce leaves are placed on the same table, and the fish slices are served with sauce.