Add the coleslaw mix to a large bowl. Crumble the dry ramen noodles into the coleslaw and then add the mandarin oranges and edamame. Add the green onions, slivered almonds and black sesame seeds and toss.
In a small bowl, whisk the rice vinegar, vegetable oil, soy sauce, sugar and sesame oil and freshly ground black pepper in a small bowl. Drizzle over the slaw mix and toss to combine. Refrigerate for 1 hour for flavors to meld.