Thinly slice radish, pear, and onion
Pour water into a pot and add kelp, anchovies, radish, and onion, then bring to a boil
Once it starts boiling, remove the kelp first and continue to simmer on medium-low heat for 20 more minutes
Remove the anchovies and remaining ingredients
Season with pear juice, vinegar, sugar, and salt to taste
Cool the broth and store it in the refrigerator or freezer