For advice on which fish are safe (and even encouraged) to eat raw, Food Republic spoke to Dr. Jae Choi, the executive chef and owner of Yakitori Jinbei.
Lay the clam meat back in the shells (if you like, cut the clam meat into bite-size pieces ... Arrange the sea urchin (uni) pieces on the clams. Use a fine-tooth rasp-type grater to shave ...