Soak the beef bones in cold water to remove blood.
Blanch the beef bones in boiling water to remove impurities.
Add the bones and water to a pot and simmer for at least 3 hours.
Cut radish, onion, green onion, and carrot into bite-size pieces.
Add the prepared vegetables to the simmered broth and cook for another 20 minutes.
Season with salt and pepper to taste.