This is a healthy onion salad. The crunchy crispy texture of the chopped onion is nice. We have this salad on bread as well.
My family eat a lot of raw onion salad for our health, since raw onions are supposed to be good for you. Our two favorites are sliced onion salad and this tuna salad.
The onion is soaked in water to remove the harshness, but it'll lose its nutrients if you soak it for too long, so soak it for about 2 to 3 minutes.
Enjoy Japanese food around the world.