Bring the ☆ ingredients to a boil in a pot. When it has come to a boil, add Step 2 fish mixture, using a spoon (about 1 heaped teaspoon) to form balls. When the fish balls float to the top, and the soup comes back to a boil too, turn off the heat and ladle the soup into bowls. Garnish with daikon radish sprouts and serve. Add finely shredded yuzu peel too if you have some.