Soak the arame in water for around 10 minutes, before transferring to a pot to cook. Pour half of the water over the arame, being careful to not pour in any sand that may have floated out of the sea veggie in the soaking process. Place the beans on top of the arame and bring the water to a boil. Cover and simmer until the green beans are al dente, crips yet tender. This will take between 8-10 minutes. Remove any excess liquid, add soy sauce and then stir it up to eat!