Put the seaweed in a bowl and cover it with cold water. Let it soak in the liquid until the seaweed is soft and rehydrated. This process should take about ten minutes. Then, drain the liquid and squeeze out excess from the seaweed. Cut the seaweed into smaller pieces.
Get a small bowl and mix the vinegar, mirin, oil, seeds, soy sauce, and ginger. Then, toss this mixture with the chopped seaweed. Mix in